Texas Instruments TI-89 manual

00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page i of 16 TI-89 TI-92 Plus Guidebook for Advanced Mathematics Software Version 2.0 © 1999 -2002 Texas Instruments[...]

00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page ii of 16 Texas Instruments makes no warranty, either expressed or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book material[...]

00_89IFC.DOC TI-89/TI-92 Plus: Inside Front Cover (En g lish) Susan Gullord Revised: 02/23/01 9:44 AM Printed: 02/23/01 2:10 PM Pa g e 1 of 1 General ¥O List of Flash applications 2a Toggle between last two chosen applications or split sc reens ¥| , ¥« Lighten or darken contrast ¥¸ Calculate approximate answer ¥C , ¥D Move cursor to top or [...]

00_92IBC.DOC TI-89/92 Plus: Inside Back Cover (En g lish) Susan Gullord Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Pa g e 1 of 1 General ¥ O List of Flash applications 2a Toggle between last two chosen applications or split sc reens ¥ D Copy graph coordinates to sysdata ¥ F Display FORMATS dialog box ¥ H Copy graph coordinates to Home[...]

iii 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page iii of 16 Flash Applications ...................................................................................... x Keystroke Differences ............................................................................. x[...]

iv 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page iv of 16 Preview of Symbolic Manipulation ........................................................ 58 Using Undefined or Defined Variables .................................................. 59 Using Exact, Approximate, a[...]

v 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page v of 16 Preview of Polar Graphing .................................................................... 134 Overview of Steps in Graphing Polar Equations................................ 135 Differences in Polar and Functio[...]

vi 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page vi of 16 Preview of Additional Graphing Topics .............................................. 202 Collecting Data Points from a Graph................................................... 203 Graphing a Function Defined on [...]

vii 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page vii of 16 Preview of Programming....................................................................... 276 Running an Existing Program ............................................................... 278 Starting a Prog[...]

viii 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page viii of 16 Preview of Memory and Variable Management ................................. 350 Checking and Resetting Memory ......................................................... 353 Displaying the VAR-LINK Screen ....[...]

ix 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page ix of 16 TI - 89 / TI - 92 Plus Error Messages ....................................................... 542 Modes ....................................................................................................... 550[...]

x Flash Applications Flash functionality enables the ability to download different applications to a TI - 89 / TI - 92 Plus calculator from the enclosed CD-ROM, the TI web site, or from another calculator. Before downloading new applications to a TI - 89 / TI - 92 Plus , please read and accept the license agreement on the TI - 89 / TI - 92 Plus App[...]

xi 00_front.doc TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 01/18/02 2:39 PM Printed: 01/18/02 2:42 PM Page xi o f 16 Do not attempt to transfer an application if a low-battery message appears on either the receiving or sending calculator. 1. Connect the calculators with the calculator-to-calculator cable that came with the TI -[...]

xii 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page xii of 16 Keystr oke Differ ences There are certain differences in keystrokes using the TI - 89 / TI - 92 Plus for various operations. The following table shows the keystrokes for major commands for the two calculators.[...]

xiii 00_FRONT.DOC TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 02/23/01 10:37 AM Printed: 02/23/01 2:10 P M Page xiii of 16 FUNCTION ³ TI-89 › TI-92 Plus SYMBOLS ú (Conversion triangle) 2  2  _ (Underscore) ¥  2  θ (Theta) ¥ Ï Ï | (“With”) Í 2 Í ' (Prime) 2 È 2 È ° (Degree) 2 v 2 v ∠ (Angle) 2[...]

xiv What’s New? TI developed the Advanced Mathematics Software Version 2.0 to enable downloadable calculator software applications for the TI - 89 and TI - 92 Plus . For details, refer to: Chapter 21 and 22 Advanced Mathematics Software Version 2.0 is an infrastructure enhancement of the current Advanced Mathematics Software Version 1.xx. It has [...]

xv 00_front.doc TI-89/TI-92 Plus: Front Matter (English) Bob Fedorisko Revised: 01/18/02 2:39 PM Printed: 01/18/02 2:42 PM Page xv o f 16 The TI - 89 / TI - 92 Plus uses Flash technology, which lets you upgrade future software versions without buying a new calculator. For details, refer to: Chapter 22 As new functionality becomes available, you can[...]

Chapter 1: Getting Started 1 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 1 of 12 Chapter 1: Getting Star ted Getting the TI . 89 Ready to Use ................................................................ 2 Getting the TI . 92 Plus Ready to Use..................[...]

2 Chapter 1: Getting Started 01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 P M Page 2 of 12 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 2 of 12 To install the four AAA batteries: 1. Place the [...]

Chapter 1: Getting Started 3 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 3 of 12 To install the four AA alkaline batteries: 1. Holding the TI - 92 Plus unit upright, slide the latch on the top of the unit to the left unlocked position; slide the rear cover down ab[...]

4 Chapter 1: Getting Started 01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 P M Page 4 of 12 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 4 of 12 After you install the batteries in your TI - 89 [...]

Chapter 1: Getting Started 5 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 5 of 12 1. Press the cursor keys ( D or C ) to move the pointer to the language in which you would like to set your TI - 89 / TI - 92 Plus . (The list of languages on your calculator may vary[...]

6 Chapter 1: Getting Started 01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 P M Page 6 of 12 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 6 of 12 After you select a language, a blank Home screen[...]

Chapter 1: Getting Started 7 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 7 of 12 The following example shows an answer that is not on the same line as the expression. Note that the answer is longer than the screen width. An arrow ( 8 ) indicates the answer is cont[...]

8 Chapter 1: Getting Started 01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 P M Page 8 of 12 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 8 of 12 Steps ³ TI . 89 Keystrokes › TI . 92 Plus Key[...]

Chapter 1: Getting Started 9 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 9 of 12 Steps ³ TI . 89 Keystrokes › TI . 92 Plus Keystrokes Display Expanding Expressions 1. Expand the expression (x ì 5) 3 . You can enter “expand” on the entry line by typing EXPA[...]

10 Chapter 1: Getting Started 01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 P M Page 10 of 12 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 10 of 12 Steps ³ TI . 89 Keystrokes › TI . 92 Plus [...]

Chapter 1: Getting Started 11 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 11 of 12 Steps ³ TI . 89 Keystrokes › TI . 92 Plus Keystrokes Display 1. Display the Y= Editor. ¥# ¥# 2. Enter the function (abs(x 2 ì 3) ì 10)/2 . c½ A ¸ X Z 2 | 3 d| 10 de 2 ¸ c [...]

12 Chapter 1: Getting Started 01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 P M Page 12 of 12 01START DOC TI - 89/TI - 92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 12 of 12 Steps ³ TI . 89 Keystrokes › TI . 92 Plus [...]

Chapter 2: Operating the Calculator 13 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 13 of 44 Chapter 2: Operating the Calculator Turning the TI . 89 / TI . 92 Plus On and Off ............................................ 14 Setting the Display C[...]

14 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 14 of 44 Press ´ . ¦ If you turned the unit off by pressing 2® , the TI - 89 / TI - 92 Plus returns to the Home screen. ¦ If you turned the unit off by pres[...]

Chapter 2: Operating the Calculator 15 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 15 of 44 You can adjust the display contrast to suit your viewing angle and lighting conditions. To: Press and hold both: Decrease (lighten) the contrast ¥ and[...]

16 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 16 of 44 To move the cursor in a particular direction, press the appropriate cursor key ( A , B , C , or D ). Some TI - 89 applications also let you press: ¦ 2[...]

Chapter 2: Operating the Calculator 17 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 17 of 44 The keyboard is divided into several areas of related keys. TI-92 Plus HOME Y= WINDOW GRA PH TblSet TABLE To move the cursor, press the applicable edge[...]

18 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 18 of 44 Modifier Description 2 (second) Accesses the second function of the next key you press. On the keyboard, these are printed in the same color as the 2 k[...]

Chapter 2: Operating the Calculator 19 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 19 of 44 Some keys perform only one additional operation, which may require either 2 or ¥ , depending on the color in which the operation is printed on the key[...]

20 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 20 of 44 Key Description TI . 89: Í TI . 92 Plus: 2 Í Enters the “with” operator, which is used in symbolic calculations (Chapter 3). 2 < , 2 = Perform[...]

Chapter 2: Operating the Calculator 21 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 21 of 44 The letters x, y, z, and t are commonly used in algebraic expressions. So that you can type them quickly, these letters are primary keys on the TI - 89[...]

22 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 22 of 44 On the TI - 89 , while either type of alpha-lock is on: ¦ To type a period, comma, or other character that is the primary function of a key, you must [...]

Chapter 2: Operating the Calculator 23 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 23 of 44 When you turn on the TI - 89 / TI - 92 Plus after it has been turned off with 2 ® , th e display always shows the Hom e screen. (If the TI - 89 / TI -[...]

24 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 24 of 44 Normally, the cursor is in the entry line. However, you can move the cursor into the history area. To: Do this: V iew entries or answers that have scro[...]

Chapter 2: Operating the Calculator 25 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 25 of 44 1. Press the negation key · . (Do not use the subtraction key | .) 2. Type the number. To see how the TI - 89 / TI - 92 Plus evaluates a negation in r[...]

26 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 26 of 44 Expression Consists of numbers, variables, operators, functions, and their arguments that evaluate to a single answer. For example: p r ñ + 3 . ¦ Ent[...]

Chapter 2: Operating the Calculator 27 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 27 of 44 Expressions are evaluated according to the Equation Operating System (EOS é ) hierarchy described in Appendix B. To change the order of evaluation or [...]

28 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 28 of 44 In the history area, if both the entry and its answer cannot be displayed on one line, the answer is displayed on the next line. If an entry or answer [...]

Chapter 2: Operating the Calculator 29 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 29 of 44 By default, Pretty Print = ON . Exponents, roots, fractions, etc., are displayed in the same form in which they are traditionally written. You can use [...]

30 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 30 of 44 APPROXIMATE — All numeric results, where possible, are displayed in floating-point (decimal) form. Because undefined variables cannot be evaluated, t[...]

Chapter 2: Operating the Calculator 31 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 31 of 44 By default, Display Digits = FLOAT 6 , which means that results are rounded to a maximum of six digits. You can use 3 to select different settings. The[...]

32 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 32 of 44 After you press ¸ to evaluate an expression, the TI - 89 / TI - 92 Plus leaves that expression on the entry line and highlights it. To edit the expres[...]

Chapter 2: Operating the Calculator 33 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 33 of 44 The TI - 89 / TI - 92 Plus has both an insert and an overtype mode. By default, the TI - 89 / TI - 92 Plus is in the insert mode. To toggle between the[...]

34 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 34 of 44 Press: To display: ƒ , „ , etc. A toolbar menu — Drops down from the toolbar at the top of most application screens. Lets you select operations us[...]

Chapter 2: Operating the Calculator 35 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 35 of 44 If you select a menu item ending with ú , a submenu is displayed. You then select an item from the submenu. For items that have a submenu, you can use[...]

36 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 36 of 44 To move from one toolbar menu to another without making a selection, either: ¦ Press the key ( ƒ , „ , etc.) for the other toolbar menu. — or —[...]

Chapter 2: Operating the Calculator 37 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 37 of 44 When you turn on the custom menu, it replaces the normal toolbar menu. When you turn it off, the normal menu returns. For example, from the Home screen[...]

38 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 38 of 44 1. Press O to display a menu that lists the applications. 2. Select an application. Either: ¦ Use the cursor pad D or C to highlight the application a[...]

Chapter 2: Operating the Calculator 39 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 39 of 44 TI-89 HOME APPS F1 F2 F3 F4 F5 WINDOW GRAPH T BLSet TABLE Y= You can access commonly used applications from the keyboard. On the TI - 89 for example, ?[...]

40 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 40 of 44 Press 3 to display the MODE dialog box, which lists the modes and their current settings. Note: Modes that are not currently valid are dimmed. For exam[...]

Chapter 2: Operating the Calculator 41 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 41 of 44 Mode Description Graph Type of graphs to plot: FUNCTION , PARAMETRIC , POLAR , SEQUENCE , 3D , or DE . Current Folder Folder used to store and recall v[...]

42 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 42 of 44 Mode Description Base Lets you perform calc ulations by entering numbe rs in decimal (DEC) , hexadecimal (HEX) , or binary (BIN) form. Unit System Lets[...]

Chapter 2: Operating the Calculator 43 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 43 of 44 From the Home screen, display the Clean Up menu by pressing: TI . 89: 2 ˆ TI . 92 Plus: ˆ Menu Item Description Clear a–z Clears (deletes) all sing[...]

44 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 44 of 44 To display the CATALOG dialog box, press: TI . 89: ½ TI . 92 Plus: 2 ½ The CATALOG defaults to „ Built-in , which displays an alphabetic list of al[...]

Chapter 2: Operating the Calculator 45 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 45 of 44 3. Move the ú indicator to the command, and press ¸ . To move the ú indicator: Press or type: One command at a time D or C One page at a time 2D or [...]

46 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 46 of 44 3. Move the ú indicator to the function, and press ¸ . To move the ú indicator: Press or type: One function at a time D or C One page at a time 2D o[...]

Chapter 2: Operating the Calculator 47 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 47 of 44 A variable name: ¦ Can use 1 to 8 characters consisting of letters and digits. This includes Greek letters (but not p ), accented letters, and interna[...]

48 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 48 of 44 1. Enter the value you want to store, which can be an expression. 2. Press § . The store symbol ( ! ) is displayed. 3. Type the variable name. 4. Pres[...]

Chapter 2: Operating the Calculator 49 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 49 of 44 When you press ¸ to evaluate an expression, the TI - 89 / TI - 92 Plus leaves that expression on the entry line and highlights it. You can type over t[...]

50 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 50 of 44 Using the equation A= p r 2 , use trial and error to find the radius of a circle that covers 200 square centimeters. The example below uses 8 as the fi[...]

Chapter 2: Operating the Calculator 51 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 51 of 44 Each time you evaluate an expression, the TI - 89 / TI - 92 Plus stores the answer to the variable ans(1) . To insert this variable in the entry line, [...]

52 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 52 of 44 The effect of using auto-paste is similar to 2² and 2± as described in the previous section, but there are differences. For entries: Pasting lets you[...]

Chapter 2: Operating the Calculator 53 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 53 of 44 Indicator Meaning Current Folder Shows the name of the current folder. Refer to “Using Folders to Store Independent Sets of Variables” in Chapter 5[...]

54 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 54 of 44 Indicator Meaning Exact/ A pprox Mode Shows how answers are calculated and displayed. Refer to page 29. To change the Exact/Approx mode, use the 3 key.[...]

Chapter 2: Operating the Calculator 55 02OPER DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 55 of 44 From the Home screen, press ƒ and then select A:About . Your screen will be different than the one shown to the right. Press ¸ or N to close the scre[...]

56 Chapter 2: Operating the Calculator 02OPER.DOC TI - 89/TI - 92 Plus: O p erating the TI - 89/TI - 92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 56 of 44[...]

Chapter 3: Symbolic Manipulation 57 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 57 of 24 Chapter 3: Symbolic Manipulation Preview of Symbolic Manipulation ........................................................ 58 Using Undefined or Defined Variables ......[...]

58 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 58 of 24 Steps ³ TI . 89 Keystrokes › TI . 92 Plus Keystrokes Display 1. Display the Home screen and clear the entry line. Solve the equation 2x ì 3y = 4 for x . „ 1 select[...]

Chapter 3: Symbolic Manipulation 59 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 59 of 24 When you enter an expression that contains a variable, the TI - 89 / TI - 92 Plus treats the variable in one of two ways. ¦ If the variable is undefined, it is treated [...]

60 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 60 of 24 You can “undefine” a defined variable by deleting it. To delete: Do this: One or more specified v ariables Use the DelVar function. You can also delete variables by [...]

Chapter 3: Symbolic Manipulation 61 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 61 of 24 When Exact/Approx = EXACT , the TI - 89 / TI - 92 Plus uses exact rational arithmetic with up to 614 digits in the numerator and 614 digits in the denominator. The EXACT[...]

62 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 62 of 24 When Exact/Approx = APPROXIMATE , the TI - 89 / TI - 92 Plus converts rational numbers and irrational constants to floating-point. However, there are exceptions: ¦ Cert[...]

Chapter 3: Symbolic Manipulation 63 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 63 of 24 When Exact/Approx = AUTO , the TI - 89 / TI - 92 Plus uses exact rational arithmetic wherever all of the operands are rational numbers. Otherwise, floating-point arithme[...]

64 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 64 of 24 All of the following rules are applied automatically. You do not see intermediate results. ¦ If a variable has a defined value, that value replaces the variable. If the[...]

Chapter 3: Symbolic Manipulation 65 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 65 of 24 ¦ Identities involving zeros and ones are exploited. ¦ Polynomial greatest common divisors are canceled. ¦ Polynomials are expanded unless no key cancellation can occ[...]

66 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 66 of 24 Functions that use delayed simplification have a required var argument that performs the function with respect to a variable. These functions have at least two arguments[...]

Chapter 3: Symbolic Manipulation 67 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 67 of 24 To type the “with” operator ( | ), press: TI . 89: Í TI . 92 Plus: 2 Í For every occurrence of a specified variable, you can substitute a numeric value or an expre[...]

68 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 68 of 24 ¦ Substitution occurs only where there is an exact match for the substitution. ¦ Infinite recursions can occur when you define a substitution variable in terms of itse[...]

Chapter 3: Symbolic Manipulation 69 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 69 of 24 Many identities and transformations are valid for only a particular domain. For example: ln(x ù y) = ln(x) + ln(y) only if x and/or y is not negative sin ê (sin( q )) [...]

70 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 70 of 24 From the Home screen, press „ to display: This menu is also available from the MATH menu. Press 2I and then select 9:Algebra . Menu Item Description solve Solves an ex[...]

Chapter 3: Symbolic Manipulation 71 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 71 of 24 Menu Item Description Trig Displays the submenu: tExpand Expands trig expressions with angle sums and multiple angles. tCollect Collects the products of integer powers o[...]

72 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 72 of 24 You can add or divide polynomials directly, without using a special function. Use the factor ( „ 2 ) and expand ( „ 3 ) functions. factor ( expression [, var ]) expa[...]

Chapter 3: Symbolic Manipulation 73 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 73 of 24 Use the solve ( „ 1 ) function to solve an equation for a specified variable. solve ( equation , var ) Solve x + y ì 5 = 2x ì 5y for x . Notice that solve displays o[...]

74 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 74 of 24 Use the zeros ( „ 4 ) function. zeros ( expression , var ) Use the expression x ù sin(x) + cos(x) . Find the zeros with respect to x in the interval 0  x and x [...]

Chapter 3: Symbolic Manipulation 75 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 75 of 24 From the Home screen, press … to display: This menu is also available from the MATH menu. Press 2I and then select A:Calculus . Menu Item Description d differentiate D[...]

76 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 76 of 24 Use the ‰ integrate ( … 2 ) and d differentiate ( … 1 ) functions. ‰ ( expression , var [, low ] [, up ]) d ( expression , var [, order ]) Integrate x ñù sin(x[...]

Chapter 3: Symbolic Manipulation 77 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 77 of 24 Refer to: ¦ “Creating and Evaluating User-Defined Functions” in Chapter 5. ¦ “Graphing a Function Defined on the Home Screen” and “Graphing a Piecewise Defin[...]

78 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 78 of 24 Multi-statement user-defined functions should be used as an argument for numeric functions (such as nDeriv and nInt ) only. In some cases, you may be able to create an e[...]

Chapter 3: Symbolic Manipulation 79 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 79 of 24 ¦ Delete unneeded variables and/or Flash applications, particularly large-sized ones. − Use 2° as described in Chapter 21 to view and delete variables and/or Flash a[...]

80 Chapter 3: Symbolic Manipulation 03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/ 01 2:12 PM Page 80 of 24 These indicate the result of an identity or a Boolean expression. This notation indicates an “arbitrary integer” that represents any integer. When an arbitrary integ[...]

Chapter 4: Co n st a nt s a nd M ea s u re m en t U ni t s 81 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 81 of 12 Chapter 4: Constants and Measur ement Units Preview of Constants and Measurement Units .................................... 82 Entering C[...]

82 Chapter 4: C on s ta n t s a n d M e a su r em e n t U n it s 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 82 of 12 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 1. Display the MODE dialog box, Page 3 . For Unit System mode, select [...]

Chapter 4: Co n st a nt s a nd M ea s u re m en t U ni t s 83 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 83 of 12 The following shows how to select a unit, but you can use the same general procedure to select a constant. From the Home screen: 1. Type [...]

84 Chapter 4: C on s ta n t s a n d M e a su r em e n t U n it s 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 84 of 12 You may need to combine two or more units from different categories. For example, suppose you want to enter a velocity in meters per s[...]

Chapter 4: Co n st a nt s a nd M ea s u re m en t U ni t s 85 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 85 of 12 If you use a unit in a calculation, it is converted and displayed automatically in the current default unit for that category, unless you[...]

86 Chapter 4: C on s ta n t s a n d M e a su r em e n t U n it s 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 86 of 12 To enter meters per second squared: 27_m/_s^2 To convert meters per second squared from seconds to hours: 27_m/_s^2 4 1/_hr^2 To conve[...]

Chapter 4: Co n st a nt s a nd M ea s u re m en t U ni t s 87 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 87 of 12 The SI and ENG/US systems of measurement (set from Page 3 of the MODE screen) use built- in default units, which you cannot change. To fi[...]

88 Chapter 4: C on s ta n t s a n d M e a su r em e n t U n it s 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 88 of 12 Some example reasons to create a unit are: ¦ You want to enter length values in dekameters. Define 10_m as a new unit named _dm. ¦ I[...]

Chapter 4: Co n st a nt s a nd M ea s u re m en t U ni t s 89 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 89 of 12 The SI and ENG/US systems of measurement use built-in default units. In this section, the built-in defaults are indicated by (SI) and (EN[...]

90 Chapter 4: C on s ta n t s a n d M e a su r em e n t U n it s 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 90 of 12 _cup ........ cup _floz ........ fluid ounce _flozUK .. British fluid ounce _gal ......... gallon _galUK.... British gallon _l .......[...]

Chapter 4: Co n st a nt s a nd M ea s u re m en t U ni t s 91 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 91 of 12 _atm ........ atmosphere _bar......... bar _inH2O ... inches of water _inHg ...... inches of mercury _ m m H 2 O.. millimeters of water _[...]

92 Chapter 4: C on s ta n t s a n d M e a su r em e n t U n it s 04UNITS DOC TI - 89/92Plus: Constants and Measurement Units (English) Susan Gullord Revised: 02/23/01 10:54 AM Printed: 02/23/01 2:12 PM Page 92 of 12[...]

Chapter 5: Additional Home Screen Topics 93 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 93 of Chapter 5: Additional Home Scr een T opics Saving the Home Screen Entries as a Text Editor Script ................... 94 Cutting, Copying, and Pasting [...]

94 Chapter 5: Additional Home Screen Topics 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 94 of From the Home screen: 1. Press ƒ and select 2:Save Copy As . 2. Specify a folder and text variable that you want to use to store the entries. Item Des[...]

Chapter 5: Additional Home Screen Topics 95 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 95 of Auto-paste, described in Chapter 2, is a quick way to copy an entry or answer in the history area and paste it to the entry line. 1. Use C and D to hig[...]

96 Chapter 5: Additional Home Screen Topics 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 96 of A paste operation inserts the contents of the clipboard at the current cursor location on the entry line. This does not change the contents of the clip[...]

Chapter 5: Additional Home Screen Topics 97 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 97 of The following examples show user-defined functions with one argument and two arguments. You can use as many arguments as necessary. In these examples, [...]

98 Chapter 5: Additional Home Screen Topics 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 98 of You can also create a user-defined function whose definition consists of multiple statements. The definition can include many of the control and decisi[...]

Chapter 5: Additional Home Screen Topics 99 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 99 of To: Do this: Display a list of all user-defined functions Press 2° to display the VAR-LINK screen. You may need to use the „ View toolbar menu to sp[...]

100 Chapter 5: Additional Home Screen Topics 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 100 of Folders give you a convenient way to manage variables by organizing them into related groups. For example, you can create separate folders for differ[...]

Chapter 5: Additional Home Screen Topics 101 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 101 of Enter the NewFold command. NewFold folderName The VAR-LINK screen, which is described in Chapter 21, lists the existing variables and folders. 1. Pre[...]

102 Chapter 5: Additional Home Screen Topics 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 102 of You can access a user-defined variable or function that is not in the current folder. Specify the complete pathname instead of only the variable name[...]

Chapter 5: Additional Home Screen Topics 103 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 103 of Move the cursor into the history area, and highlight the entry or answer. Then use the cursor pad to scroll. For example: ¦ The following shows an a[...]

104 Chapter 5: Additional Home Screen Topics 05ADDLHM DOC TI - 89/TI - 92 Plus: Additional Home Screen To p ics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 104 of[...]

Chapter 6: Basic Function Graphing 105 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 105 of 22 Chapter 6: Basic Function Graphing Preview of Basic Function Graphing................................................... 106 Overview of Steps in Graphing Functions[...]

106 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 106 of 22 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph mode, select FUNCTION . 3 B 1 ¸ 3 B 1 ¸ 2. Display the H[...]

Chapter 6: Basic Function Graphing 107 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 107 of 22 From the Graph screen, you can: ¦ Display the coordinates of any pixel by using the free-moving cursor, or of a plotted point by tracing a function. ¦ Use the „[...]

108 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 108 of 22 1. Press 3 to display the MODE dialog box, which shows the current mode settings. 2. Set the Graph mode to FUNCTION . Refer to “Setting Modes” in Chapter 2. Whi[...]

Chapter 6: Basic Function Graphing 109 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 109 of 22 1. Press ¥# or O 2 to display the Y= Editor. 2. Press D and C to move the cursor to any undefined function. (Use 2D and 2C to scroll one page at a time.) 3. Press [...]

110 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 110 of 22 From the Y= Editor: To erase: Do this: A function from the function list Highlight the function and press 0 or M . A function from the entry line Press M once or tw[...]

Chapter 6: Basic Function Graphing 111 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 111 of 22 Press ¥# or O 2 to display the Y= Editor. A “ Ÿ ” indicates which functions will be graphed the next time you display the Graph screen. To select or deselect:[...]

112 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 112 of 22 From the Y= Editor: 1. Move the cursor to highlight the applicable function. 2. Select the Style menu: TI . 89: Press 2ˆ . TI . 92 Plus: Press ˆ . ¦ Although the[...]

Chapter 6: Basic Function Graphing 113 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 113 of 22 Press ¥$ or O 3 to display the Window Editor. Window Variables (shown in Window Editor) Corresponding Viewing Window (shown on Graph screen) Variable Description x[...]

114 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 114 of 22 From the Y= Editor, Window Editor, or Graph screen, press ƒ and select 9:Format . ¦ The GRAPH FORMATS dialog box shows the current settings. ¦ To exit without ma[...]

Chapter 6: Basic Function Graphing 115 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 115 of 22 Press ¥% or O 4 . The TI - 89 / TI - 92 Plus automatically graphs the selected functions. While graphing is in progress: ¦ To pause graphing temporarily, press ¸[...]

116 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 116 of 22 When you first display the Graph screen, no cursor is visible. To display the cursor, press a cursor pad arrow. The cursor moves from the center of the screen, and [...]

Chapter 6: Basic Function Graphing 117 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 117 of 22 From the Graph screen, press … . The trace cursor appears on the function, at the middle x value on the screen. The cursor’s coordinates are displayed at the bo[...]

118 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 118 of 22 Press C or D to move to the previous or next selected function at the same x value. The new function number is shown on the screen. The “previous or next” funct[...]

Chapter 6: Basic Function Graphing 119 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 119 of 22 Press „ from the Y= Editor, Window Editor, or Graph screen. Procedures for using ZoomBox , ZoomIn , ZoomOut , ZoomStd , Memory , and SetFactors are given later in[...]

120 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 120 of 22 1. From the „ Zoom menu, select 1:ZoomBox . The screen prompts for 1st Corner? 2. Move the cursor to any corner of the box you want to define, and then press ¸ .[...]

Chapter 6: Basic Function Graphing 121 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 121 of 22 The Zoom factors define the magnification and reduction used by ZoomIn and ZoomOut . 1. From the „ Zoom menu, select C:SetFactors to display the ZOOM FACTORS dial[...]

122 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 122 of 22 Press ‡ from the Graph screen. Math Tool Description Value Evaluates a selected y(x) function at a specified x value. Zero, Minimum, Maximum Finds a zero (x-inter[...]

Chapter 6: Basic Function Graphing 123 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 123 of 22 1. From the Graph screen, press ‡ and select 1:Value . 2. Type the x value, which must be a real value between xmin and xmax . The value can be an expression. 3. [...]

124 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 124 of 22 1. From the Graph screen, press ‡ and select 6:Derivatives . Then select 1:dy/dx from the submenu. 2. As necessary, use D and C to select the applicable function.[...]

Chapter 6: Basic Function Graphing 125 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 125 of 22 1. From the Graph screen, press ‡ and select 9:Distance . 2. As necessary, use D and C to select the function for the first point. 3. Set the first point. Either [...]

126 Chapter 6: Basic Function Graphing 06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23 /01 4:18 PM Page 126 of 22 You must have only one function graphed. If you graph two or more functions, the Shade tool shades the area between two functions. 1. From the Graph screen, press ?[...]

Chapter 7: Parametric Graphing 127 07PARAM.DOC TI-89/TI-92 Plus: Parametric Graphing (English) Susan Gullord Revised: 02/23/01 10:56 AM Printed: 02/23/01 2:13 PM Page 127 of 6 Chapter 7: Parametric Graphing Preview of Parametric Graphing.......................................................... 128 Overview of Steps in Graphing Parametric Equations[...]

128 Chapter 7: Parametric Graphing 07PARAM.DOC TI-89/TI-92 Plus: Parametric Graphing (English) Susan Gullord Revised: 02/23/01 10:56 AM Printed: 02/23/01 2:13 PM Page 128 of 6 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph mode, select PARAMETRIC . 3 B 2 ¸ 3 B 2 ¸ 2. Display and clear the Y= [...]

Chapter 7: Parametric Graphing 129 07PARAM.DOC TI-89/TI-92 Plus: Parametric Graphing (English) Susan Gullord Revised: 02/23/01 10:56 AM Printed: 02/23/01 2:13 PM Page 129 of 6 From the Graph screen, you can: ¦ Display the coordinates of any pixel by using the free-moving cursor, or of a plotted point by tracing a parametric equation. ¦ Use the ?[...]

130 Chapter 7: Parametric Graphing 07PARAM.DOC TI-89/TI-92 Plus: Parametric Graphing (English) Susan Gullord Revised: 02/23/01 10:56 AM Printed: 02/23/01 2:13 PM Page 130 of 6 Use 3 to set Graph = PARAMETRIC before you define equations or set Window variables. The Y= Editor and the Window Editor let you enter information for the current Graph mode [...]

Chapter 7: Parametric Graphing 131 07PARAM.DOC TI-89/TI-92 Plus: Parametric Graphing (English) Susan Gullord Revised: 02/23/01 10:56 AM Printed: 02/23/01 2:13 PM Page 131 of 6 To graph a parametric equation, select either its x or y component or both . When you enter or edit a component, it is selected automatically. Selecting x and y components se[...]

132 Chapter 7: Parametric Graphing 07PARAM.DOC TI-89/TI-92 Plus: Parametric Graphing (English) Susan Gullord Revised: 02/23/01 10:56 AM Printed: 02/23/01 2:13 PM Page 132 of 6 As in function graphing, you can explore a graph by using the following tools. Tool For Parametric Graphs: Free-Moving Cursor Works just as it does for function graphs. „ Z[...]

Chapter 8: Polar Graphing 133 08POLAR.DOC TI-89/TI-92 Plus: Polar Graphing (English) Susan Gullord Revised: 02/23/01 10:57 AM Printed: 02/23/01 2:14 PM Page 133 of 6 Chapter 8: Polar Graphing Preview of Polar Graphing .................................................................... 134 Overview of Steps in Graphing Polar Equations..............[...]

134 Chapter 8: Polar Graphing 08POLAR.DOC TI-89/TI-92 Plus: Polar Graphing (English) Susan Gullord Revised: 02/23/01 10:57 AM Printed: 02/23/01 2:14 PM Page 134 of 6 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph mode, select POLAR . For Angle mode, select RADIAN . 3 B 3 DDDB 1 ¸ 3 B 3 DDDB 1 [...]

Chapter 8: Polar Graphing 135 08POLAR.DOC TI-89/TI-92 Plus: Polar Graphing (English) Susan Gullord Revised: 02/23/01 10:57 AM Printed: 02/23/01 2:14 PM Page 135 of 6 From the Graph screen, you can: ¦ Display the coordinates of any pixel by using the free-moving cursor, or of a plotted point by tracing a polar equation. ¦ Use the „ Zoom toolbar [...]

136 Chapter 8: Polar Graphing 08POLAR.DOC TI-89/TI-92 Plus: Polar Graphing (English) Susan Gullord Revised: 02/23/01 10:57 AM Printed: 02/23/01 2:14 PM Page 136 of 6 Use 3 to set Graph = POLAR before you define equations or set Window variables. The Y= Editor and the Window Editor let you enter information for the current Graph mode setting only. Y[...]

Chapter 8: Polar Graphing 137 08POLAR.DOC TI-89/TI-92 Plus: Polar Graphing (English) Susan Gullord Revised: 02/23/01 10:57 AM Printed: 02/23/01 2:14 PM Page 137 of 6 The Window Editor maintains an independent set of Window variables for each Graph mode setting (just as the Y= Editor maintains independent function lists). Polar graphs use the follow[...]

138 Chapter 8: Polar Graphing 08POLAR.DOC TI-89/TI-92 Plus: Polar Graphing (English) Susan Gullord Revised: 02/23/01 10:57 AM Printed: 02/23/01 2:14 PM Page 138 of 6 As in function graphing, you can explore a graph by using the following tools. Any displayed coordinates are shown in polar or rectangular form as set in the graph format. Tool For Pol[...]

Chapter 9: Sequence Graphing 139 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 139 of 14 Chapter 9: Sequence Graphing Preview of Sequence Graphing ............................................................ 140 Overview of Steps in Graphing Sequences ............[...]

140 Chapter 9: Sequence Graphing 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 140 of 14 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph mode, select SEQUENCE . 3 B 4 ¸ 3 B 4 ¸ 2. Display and clear the Y= Edi[...]

Chapter 9: Sequence Graphing 141 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 141 of 14 From the Graph screen, you can: ¦ Display the coordinates of any pixel by using the free-moving cursor, or of a plotted point by tracing a sequence. ¦ Use the „ Zoom toolb[...]

142 Chapter 9: Sequence Graphing 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 142 of 14 Use 3 to set Graph = SEQUENCE before you define sequences or set Window variables. The Y= Editor and the Window Editor let you enter information for the current Graph mode set[...]

Chapter 9: Sequence Graphing 143 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 143 of 14 With TIME and WEB axes, the TI - 89 / TI - 92 Plus graphs only the selected sequences. If you entered any sequences that require an initial value, you must enter the correspon[...]

144 Chapter 9: Sequence Graphing 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 144 of 14 Standard values (set when you select 6:ZoomStd from the „ Zoom toolbar menu) are: nmin = 1. xmin = ë 10. ymin = ë 10. nmax = 10. xmax = 10. ymax = 10. plotStrt = 1. xscl =[...]

Chapter 9: Sequence Graphing 145 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 145 of 14 As in function graphing, you can explore a graph by using the following tools. Any displayed coordinates are shown in rectangular or polar form as set in the graph format. Too[...]

146 Chapter 9: Sequence Graphing 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 146 of 14 From the Y= Editor, Axes: ¦ Depending on the current Axes setting, some items may be dimmed. ¦ To exit without making any changes, press N . Item Description Axes TIME — P[...]

Chapter 9: Sequence Graphing 147 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 147 of 14 A sequence must meet the following criteria; otherwise, it will not be graphed properly on WEB axes. The sequence: ¦ Must be recursive with only one recursion level; u(n ì 1[...]

148 Chapter 9: Sequence Graphing 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 148 of 14 1. On the Y= Editor ( ¥# ), define u1(n) = ë .8u1(n ì 1) + 3.6 . Set initial value ui1 = ë 4 . 2. Set Axes = TIME . 3. On the Window Editor ( ¥$ ), set the Window variabl[...]

Chapter 9: Sequence Graphing 149 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 149 of 14 5. On the Y= Editor, set Axes = WEB and Build Web = AUTO . 6. On the Window Editor, change the Window variables. nmin=0. xmin= ë 10. ymin= ë 10. nmax=10. xmax=10. ymax=10. p[...]

150 Chapter 9: Sequence Graphing 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 150 of 14 Using the predator-prey model in biology, determine the numbers of rabbits and foxes that maintain population equilibrium in a certain region. R = Number of rabbits M = Growth[...]

Chapter 9: Sequence Graphing 151 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 151 of 14 In a Fibonacci sequence, the first two terms are 1 and 1. Each succeeding term is the sum of the two immediately preceding terms. 1. On the Y= Editor ( ¥# ), define the seque[...]

152 Chapter 9: Sequence Graphing 09SEQUEN.DOC TI-89/TI-92 Plus: Sequence Graphing (English) Susan Gullord Revised: 02/23/01 10:59 AM Printed: 02/23/01 2 :14 PM Page 152 of 14[...]

Chapter 10: 3D Graphing 153 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 153 of 22 Chapter 10: 3D Graphing Preview of 3D Graphing ........................................................................ 154 Overview of Steps in Graphing 3D Equations .......................[...]

154 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 154 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 154 of 22 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Di[...]

Chapter 10: 3D Graphing 155 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 155 of 22 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 6. Return the graph to its initial orientation. Then move the viewing angle along the “viewing orbit” around the graph. Fo[...]

156 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 156 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 156 of 22 From the Graph screen, you can: ¦ Trace the equation. ¦ [...]

Chapter 10: 3D Graphing 157 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 157 of 22 Use 3 to set Graph = 3D before you define equations or set Window variables. The Y= Editor and the Window Editor let you enter information for the current Graph mode setting only. The Y= Edi[...]

158 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 158 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 158 of 22 The Window Editor maintains an independent set of Window v[...]

Chapter 10: 3D Graphing 159 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 159 of 22 The Axes and Style formats are specific to the 3D graphing mode. Refer to “Changing the Axes and Style Formats” on page 165. As in function graphing, you can explore a graph by using the[...]

160 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 160 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 160 of 22 On a 3D surface, the cursor always follows along a grid wi[...]

Chapter 10: 3D Graphing 161 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 161 of 22 On more complex shapes, the cursor may appear as if it is not on a grid point. This is an optical illusion caused when the cursor is on a hidden surface. For example, consider a saddle shape[...]

162 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 162 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 162 of 22 The viewing angle has three components: ¦ eye q — angle[...]

Chapter 10: 3D Graphing 163 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 163 of 22 By changing eye f , you can elevate your viewing angle above the xy plane. If 90 < eye f < 270 , the viewing angle is below the xy plane. z1(x,y) = (x 3 y - y 3 x) / 390 In this exampl[...]

164 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 164 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 164 of 22 When using A and B to animate a graph, think of it as movi[...]

Chapter 10: 3D Graphing 165 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 165 of 22 From the Y= Editor, Window Editor, or Graph screen, press: ƒ 9 — or — TI - 89 : ¥Í TI - 92 Plus : ¥ F ¦ The dialog box shows the current graph format settings. ¦ To exit without ma[...]

166 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 166 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 166 of 22 To display the valid Style settings, highlight the current[...]

Chapter 10: 3D Graphing 167 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 167 of 22 In 3D graphing mode, define an equation and graph it as you would any 3D equation, with the following exception. Display the GRAPH FORMATS dialog box by pressing ƒ 9 from the Y= Editor, Win[...]

168 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 168 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 168 of 22 You can set the ncontour Window variable ( ¥ $ ) to speci[...]

Chapter 10: 3D Graphing 169 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 169 of 22 From the Graph screen, display the Draw menu and then select 8:DrwCtour . The Home screen is displayed automatically with DrwCtour in the entry line. You can then specify one or more z value[...]

170 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 170 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 170 of 22 In this example, let f(x)=x 3 +1. By substituting the gene[...]

Chapter 10: 3D Graphing 171 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 171 of 22 In 2D function graphing mode, equations have an explicit form y=f(x), where y is unique for each value of x. Many equations, however, have an implicit form f(x,y)=g(x,y), where you cannot ex[...]

172 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 172 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 172 of 22 ¦ The viewing angle is set initially so that you are view[...]

Chapter 10: 3D Graphing 173 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 173 of 22 Graph the equation sin(x 4 +y ì x 3 y) = .1 . 1. Use 3 to set Graph = 3D . 2. Press ¥# , and define the equation: z1(x,y)=sin(x ^ 4+y ì x^3y ) ì .1 3. Press ¥$ , and set the Window vari[...]

174 Chapter 10: 3D Graphing 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 174 of 22 10_3D.DOC TI-89/TI-92 Plus: 3D Graphing (English) Susan Gullord Revised: 02/23/01 11:00 AM Printed: 02/23/01 4:22 PM Page 174 of 22[...]

Chapter 11: Differential Equation Graphing 175 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 175 of 26 Chapter 11: Dif ferential Equation Graphing Preview of Differential Equation Graphing ........................................ 176 Overview of Steps in Graph[...]

176 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 176 of 26 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph mode, select DIFF EQUATIONS . 3 B 6 ¸ 3 B 6 ¸ 2. Disp[...]

Chapter 11: Differential Equation Graphing 177 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 177 of 26 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 6. Return to the Y= Editor and enter an initial condition: yi1=10 ¥# ¸ 10 ¸ ¥# ¸ 10 ¸ 7. Re[...]

178 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 178 of 26 Overview of Steps in Graphing Differential Equations To graph differential equations, use the same general steps used for y(x) functions as described in Chap[...]

Chapter 11: Differential Equation Graphing 179 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 179 of 26 Use 3 to set Graph = DIFF EQUATIONS before you define differential equations or set Window variables. The Y= Editor and the Window Editor let you enter infor[...]

180 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 180 of 26 From the Y= Editor, Window Editor, or Graph screen, press: ƒ 9 — or — TI - 89: ¥ Í TI - 92 Plus: ¥ F The formats affected by differential equations a[...]

Chapter 11: Differential Equation Graphing 181 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 181 of 26 In the Y= Editor, Axes may or may not be available, depending on the current graph format. If it is available, you can select the axes that are used to graph[...]

182 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 182 of 26 xmin , xmax , ymin , ymax Boundaries of the viewing window. xscl , yscl Distance between tick marks on the x and y axes. ncurves Number of solution curves (0[...]

Chapter 11: Differential Equation Graphing 183 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 183 of 26 When a slope or direction field is drawn, a picture of the field is stored automatically to a system variable named fldpic . If you perform an operation that[...]

184 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 184 of 26 You can specify one or more initial conditions in the Y= Editor. To specify more than one, enter them as a list enclosed in braces { } and separated by comma[...]

Chapter 11: Differential Equation Graphing 185 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 185 of 26 When a differential equation is graphed (regardless of whether a solution curve is displayed), you can select a point on the Graph screen and use it as an in[...]

186 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 186 of 26 A system of equations can be defined in various ways, but the following is a general method. 1. Rewrite the original differential equation as necessary. a. S[...]

Chapter 11: Differential Equation Graphing 187 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 187 of 26 1. Press 3 and set Graph=DIFF EQUATIONS . 2. Define a system of equations for the 2nd-order equation as described on page 186. Rewrite the equation and make [...]

188 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 188 of 26 To examine this harmonic oscillator in more detail, use a split screen to graph the manner in which y and y' change with respect to time (t) . 9. Press [...]

Chapter 11: Differential Equation Graphing 189 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 189 of 26 1. Press 3 and set Graph=DIFF EQUATIONS . 2. Define a system of equations for the 3rd-order equation as described on page 186. Rewrite the equation and make [...]

190 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 190 of 26 From the Y= Editor, press: TI - 89 : 2‰ TI - 92 Plus: ‰ If Fields = SLPFLD , Axes is unavailable. TI - 89 : 2‰ TI - 92 Plus: ‰ Item Description Axes [...]

Chapter 11: Differential Equation Graphing 191 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 191 of 26 Use the two coupled 1st-order differential equations: y1' = ë y1 + 0.1y1 ù y2 and y2' = 3y2 ì y1 ù y2 where: y1 = Population of foxes yi1 = Ini[...]

192 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 192 of 26 8. Return to the Y= Editor. Press: ƒ 9 — or — TI - 89: ¥ Í TI - 92 Plus: ¥ F Set Fields = DIRFLD . 9. Press: TI - 89 : 2‰ TI - 92 Plus: ‰ Confirm[...]

Chapter 11: Differential Equation Graphing 193 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 193 of 26 1. Press 3 and set Graph=DIFF EQUATIONS . 2. Express the 1st-order equation in terms of y1' and y1 . y1'=.001y1 ù (100 ì y1) 3. Enter the equatio[...]

194 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 194 of 26 9. Return to the Home screen, and use BldData to create a data variable containing the Euler graphing points. BldData eulerlog 10. Use the Data/Matrix Editor[...]

Chapter 11: Differential Equation Graphing 195 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 195 of 26 16. In the Window Editor, set the Window variables. xmin= ë 10. ymin= ë 10. xres=2. xmax=100. ymax=120. xscl=10. yscl=10. 17. Display the Graph screen ( ¥[...]

196 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 196 of 26 For a general solution, use the following syntax. For a particular solution, refer to Appendix A. deSolve( 1stOr2ndOrderODE , independentVar , dependentVar )[...]

Chapter 11: Differential Equation Graphing 197 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 197 of 26 From the Y= Editor, Window Editor, or Graph screen, press: ƒ 9 — or — TI - 89: ¥ Í TI - 92 Plus: ¥ F If the equation is: Valid Fields settings are: 1[...]

198 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 198 of 26 In the Y= Editor Enter a valid system of two 1st-order equations. For information about defining a valid system for a 2nd- order equation, refer to page 186.[...]

Chapter 11: Differential Equation Graphing 199 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 199 of 26 In the Y= Editor If you enter a 2nd- or higher-order equation, enter it as a valid system of equations as described on page 186. All equations (selected or n[...]

200 Chapter 11: Differential Equation Graphing 11DIFFEQ.DOC TI-89/TI-92 Plus: Differential Equation (English) Susan Gullord Revised: 02/23/01 11:04 AM Printed: 02/23/ 01 2:15 PM Page 200 of 26[...]

Chapter 12: Additional Graphing Topics 201 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 201 of 20 Chapter 12: Additional Graphing T opics Preview of Additional Graphing Topics .............................................. 202 Collecting Data Points from a[...]

202 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 202 of 20 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph mode, select FUNCTION . For Angle mode, select RADIAN . [...]

Chapter 12: Additional Graphing Topics 203 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 203 of 20 1. Display the graph. (This example shows y1(x)=5 ù cos(x) .) 2. Display the coordinates or math results you want to collect. 3. Save the information to the [...]

204 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 204 of 20 On the Y= Editor, all functions must be defined in terms of the current graph mode’s “native” independent variable. Graph Mode Native Independent Variab[...]

Chapter 12: Additional Graphing Topics 205 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 205 of 20 The Graph command lets you graph an expression from the Home screen without using the Y= Editor. Unlike the Y= Editor, Graph lets you specify an expression in[...]

206 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 206 of 20 To define a two-piece function, use the syntax: when ( condition , trueExpression , falseExpression ) For example, suppose you want to graph a function with t[...]

Chapter 12: Additional Graphing Topics 207 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 207 of 20 For three or more pieces, you may want to create a multi-statement, user-defined function. For example, consider the previous three-piece function. When: Use [...]

208 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 208 of 20 Enter the expression {2,4,6} sin(x) and graph the functions. Graphs three functions: 2 sin(x), 4 sin(x), 6 sin(x) Enter the expression {2,4,6} sin({1,2,3} x) [...]

Chapter 12: Additional Graphing Topics 209 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 209 of 20 Several mode settings affect the two-graph mode, but only two settings are required. Both are on Page 2 of the MODE dialog box. 1. Press 3 . Then press „ to[...]

210 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 210 of 20 Both Graph 1 and Graph 2 have independent: ¦ Graph modes ( FUNCTION , POLAR , etc.). Other modes such as Angle , Display Digits , etc., are shared and affect[...]

Chapter 12: Additional Graphing Topics 211 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 211 of 20 For more complete information about split screens, refer to Chapter 14. ¦ To switch from one graph side to the other, press 2 a (second function of O ). ¦ T[...]

212 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 212 of 20 Execute DrawFunc , DrawParm , or DrawPol from the Home screen or a program. You cannot draw a function or equation interactively from the Graph screen. DrawFu[...]

Chapter 12: Additional Graphing Topics 213 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 213 of 20 A drawn object is not part of the graph itself. It is drawn “on top of” the graph and remains on the screen until you clear it. From the Graph screen: ¦ [...]

214 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 214 of 20 From the Graph screen: 1. TI - 89: 2‰ TI - 92 Plus: ‰ and select 2:Eraser. The cursor is shown as a small box. 2. Move the cursor to the applicable locati[...]

Chapter 12: Additional Graphing Topics 215 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 215 of 20 From the Graph screen: 1. TI - 89: 2‰ TI - 92 Plus: ‰ and select 5:Horizontal or 6:Vertical . A horizontal or vertical line and a flashing cursor are disp[...]

216 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 216 of 20 From the Graph screen: 1. TI - 89: 2‰ TI - 92 Plus: ‰ and select 7:Text . 2. Move the text cursor to the location where you want to begin typing. 3. Type [...]

Chapter 12: Additional Graphing Topics 217 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 217 of 20 A picture includes any plotted functions, axes, tick marks, and drawn objects. The picture does not include lower and upper bound indicators, prompts, or curs[...]

218 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 218 of 20 When you open a graph picture, it is superimposed over the current Graph screen. To display only the picture, use the Y= Editor to deselect any other function[...]

Chapter 12: Additional Graphing Topics 219 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 219 of 20 Before using CyclePic , you must have a series of graph pictures that have the same base name and are sequentially numbered starting with 1 (such as pic1, pic[...]

220 Chapter 12: Additional Graphing Topics 12ADDLGR.DOC TI-89/TI-92 Plus: Additional Graphing Tools (English) Susan Gullord Revised: 02/23/01 1:03 PM Printed: 02/ 23/01 2:15 PM Page 220 of 20 A graph database consists of: ¦ Mode settings ( 3 ) for Graph , Angle , Complex Format , and Split Screen (only if you are using the two-graph mode). ¦ All [...]

Chapter 13: Tables 221 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 221 of 10 Chapter 13: T ables Preview of Tables ................................................................................... 222 Overview of Steps in Generating a Table................................[...]

222 Chapter 13: Tables 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 222 of 10 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the MODE dialog box. For the Graph mode, select FUNCTION . 3 B 1 ¸ 3 B 1 ¸ 2. Display and clear the Y= Editor. Then define y[...]

Chapter 13: Tables 223 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 223 of 10 From the Table screen, you can: ¦ Scroll through the table to see values on other pages. ¦ Highlight a cell to see its full value. ¦ Change the table’s setup parameters. By changing the starti[...]

224 Chapter 13: Tables 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 224 of 10 To display the TABLE SETUP dialog box, press ¥& . From the Table screen, you can also press „ . Se t u p P a r a m et e r Description tblStart If Independent = AUTO and Graph < - > Tab[...]

Chapter 13: Tables 225 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 225 of 10 To generate: t b lS t art @ t b l Graph < - > Table Independent A n automatic table ¦ Based on initial values value value OFF AUTO ¦ That matches Graph screen —— ON AUTO A manual table [...]

226 Chapter 13: Tables 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 226 of 10 Define and select the applicable functions on the Y= Editor ( ¥# ). This example uses y1(x) = x òì x/3 . Then enter the initial table parameters ( ¥& ). To display the Table screen, press ?[...]

Chapter 13: Tables 227 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 227 of 10 Cell width determines the maximum number of digits and symbols (decimal point, minus sign, and “ í ” for scientific notation) that can be displayed in a cell. All cells in the table have the s[...]

228 Chapter 13: Tables 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 228 of 10 From a table, you can change a selected function without having to use the Y= Editor. 1. Move the cursor to any cell in the column for that function. The table’s header row shows the function nam[...]

Chapter 13: Tables 229 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 229 of 10 To display the Table screen, press ¥' or O 5 . If you set Independent = ASK (with ¥& ) before displaying a table for the first time, a blank table is displayed. The cursor highlights the[...]

230 Chapter 13: Tables 13TABLES.DOC TI-89/TI-92 Plus: Tables (English) Susan Gullord Revised: 02/23/01 1:08 PM Printed: 02/23/01 2:16 PM Pag e 230 of 10 1. Move the cursor to highlight any cell in the independent variable column. 2. Press † to move the cursor to the entry line. 3. Type a series of values, enclosed in braces { } and separated by c[...]

Chapter 14: Split Screens 231 14SPLIT.DOC TI-89/TI-92 Plus:Split Screens (English) Susan Gullord Revised: 02/23/01 1:09 PM Printed: 02/23/01 2:16 PM Page 231 of 6 Chapter 14: Split Scr eens Preview of Split Screens........................................................................ 232 Setting and Exiting the Split Screen Mode .................[...]

232 Chapter 14: Split Screens 14SPLIT.DOC TI-89/TI-92 Plus:Split Screens (English) Susan Gullord Revised: 02/23/01 1:09 PM Printed: 02/23/01 2:16 PM Page 232 of 6 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph , select FUNCTION . For Split Screen , select LEFT-RIGHT . For Split 1 App , select Y[...]

Chapter 14: Split Screens 233 14SPLIT.DOC TI-89/TI-92 Plus:Split Screens (English) Susan Gullord Revised: 02/23/01 1:09 PM Printed: 02/23/01 2:16 PM Page 233 of 6 1. Press 3 to display the MODE dialog box. 2. Because the modes related to split screens are listed on the second page of the MODE dialog box, either: ¦ Use D to scroll down. — or — [...]

234 Chapter 14: Split Screens 14SPLIT.DOC TI-89/TI-92 Plus:Split Screens (English) Susan Gullord Revised: 02/23/01 1:09 PM Printed: 02/23/01 2:16 PM Page 234 of 6 Mode Description Number of Graphs Note: Leave this set to 1 unless you have read the applicable section in Chapter 12. Lets you set up and display two independent sets of graphs. This is [...]

Chapter 14: Split Screens 235 14SPLIT.DOC TI-89/TI-92 Plus:Split Screens (English) Susan Gullord Revised: 02/23/01 1:09 PM Printed: 02/23/01 2:16 PM Page 235 of 6 ¦ The active application is indicated by a thick border. ¦ The toolbar and status line, which are always the full width of the display, are associated with the active application. ¦ Fo[...]

236 Chapter 14: Split Screens 14SPLIT.DOC TI-89/TI-92 Plus:Split Screens (English) Susan Gullord Revised: 02/23/01 1:09 PM Printed: 02/23/01 2:16 PM Page 236 of 6 If the Home screen: Pressing 2K : Is not already displayed Opens the Home screen in place of the active application. Is displayed, but is not the active application Switches to the Home s[...]

Chapter 15: Data/Matrix Editor 237 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 237 of 16 Chapter 15: Data/Matrix Editor Preview of the Data/Matrix Editor ....................................................... 238 Overview of List, Data, and Matrix Variables ...[...]

238 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 238 of 16 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Start the Data/Matrix Editor and create a new list variable named TEMP . O 63 B 3 DD TEMP ¸¸ O 63 B 3 DD TEM[...]

Chapter 15: Data/Matrix Editor 239 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 239 of 16 A list is a series of items (numbers, expressions, or character strings) that may or may not be related. Each item is called an element. In the Data/Matrix Editor, a list va[...]

240 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 240 of 16 From the Home screen or a program, you can use the NewData command to create a data variable that consists of existing lists. NewData data1,list1,list2 A lthough you cannot [...]

Chapter 15: Data/Matrix Editor 241 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 241 of 16 1. Press O and then select 6:Data/Matrix Editor . 2. Select 3:New . 3. Specify the applicable information for the new variable. Item Lets you: Type Select the type of variab[...]

242 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 242 of 16 You can leave the Data/Matrix Editor and go to another application at any time. To return to the variable that was displayed when you left the Data/Matrix Editor, press O 6 [...]

Chapter 15: Data/Matrix Editor 243 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 243 of 16 A blank Data/Matrix Editor screen is shown below. When the screen is displayed initially, the cursor highlights the cell at row 1, column 1. When values are entered, the ent[...]

244 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 244 of 16 To move the cursor: Press: One cell at a time D , C , B , or A One page at a time 2 and then D , C , B , or A Go to row 1 in the current column or to the last row that conta[...]

Chapter 15: Data/Matrix Editor 245 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 245 of 16 ¦ In a matrix variable, when you enter a value in a cell outside the current boundaries, additional rows and/or columns are added automatically to the matrix to include the[...]

246 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 246 of 16 You cannot delete the rows or cells that contain column titles or headers. Also, you cannot insert a row or cell before a column title or header. The new row or column is in[...]

Chapter 15: Data/Matrix Editor 247 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 247 of 16 The new cell is inserted before the highlighted cell in the same column. (You cannot insert a cell into a locked column, which is defined by a function in the column header.[...]

248 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 248 of 16 In the Data/Matrix Editor: 1. Move the cursor to any cell in the column and press † . — or — Move the cursor to the header cell ( c1 , c2 , etc.) and press ¸ . Note: [...]

Chapter 15: Data/Matrix Editor 249 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 249 of 16 Suppose you have one or more existing lists, and you want to use those existing lists as columns in a data variable. From the: Do this: Data/Matrix Editor In the applicable [...]

250 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 250 of 16 The shift function copies a base column and shifts it up or down by a specified number of elements. Use † to define a column header with the syntax: shift ( column [, inte[...]

Chapter 15: Data/Matrix Editor 251 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 251 of 16 In the Data/Matrix Editor: 1. Move the cursor to any cell in the column. 2. TI - 89: 2ˆ TI - 92 Plus: ˆ and select 3:Sort Column . c1 c1 fred & 75 sall y 82 chris &[...]

252 Chapter 15: Data/Matrix Editor 15DATAMA.DOC TI-89/TI-92 Plus: Data/Matrix Editor (English) Susan Gullord Revised: 02/23/01 1:10 PM Printed: 02/23/01 2 :17 PM Page 252 of 16 You can copy a: To a: List List or data Data Data Data column List Matrix Matrix From the Data/Matrix Editor: 1. Display the variable that you want to copy. 2. Press ƒ and [...]

Chapter 16: Statistics and Data Plots 253 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 253 of 22 Chapter 16: Statistics and Data Plots Preview of Statistics and Data Plots.................................................... 254 Overview of Steps in Statisti[...]

254 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 254 of 22 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 1. Display the MODE dialog box. For Graph mode, select FUNCTION . 3 B 1 ¸ 3 B 1 ¸ 2. Display t[...]

Chapter 16: Statistics and Data Plots 255 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 255 of 22 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 6. Display the Calculate dialog box. Set: Calculation Type = MedMed x = C1 y = C2 Store RegEQ to[...]

256 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 256 of 22 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 15. Display the Y= Editor. For y1(x) , the MedMed regression equation, set the display style to [...]

Chapter 16: Statistics and Data Plots 257 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 257 of 22 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 22. Enter a title for column 6. Define column 6’s header as the residuals for LinReg. BC2™ R[...]

258 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 258 of 22 From the Graph screen, you can: ¦ Display the coordin ates of any pixel by using th e free-moving cursor, or of a plotted point by trac ing a plot. ¦ Use the [...]

Chapter 16: Statistics and Data Plots 259 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 259 of 22 You must have a data variable opened. The Data/Matrix Editor will not perform statistical calculations with a list or matrix variable. From the Data/Matrix Edit[...]

260 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 260 of 22 Item Description Freq Type the column number that contains a “weight” value for each data point. If you do not enter a column number, all data points are as[...]

Chapter 16: Statistics and Data Plots 261 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 261 of 22 From the Calculate dialog box ( ‡ ), highlight the current setting for the Calculation Type and press B . You can then select from a menu of available types. [...]

262 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 262 of 22 Calc Type Description MedMed Median-Median — Fits the data to the model y=ax+b (where a is the slope, and b is the y-intercept) using the median-median line, [...]

Chapter 16: Statistics and Data Plots 263 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 263 of 22 Statistical variables are stored as system variables. However, regCoef and regeq are treated as a list and a function variable, respectively. One Var Two Var Re[...]

264 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 264 of 22 From the Data/Matrix Editor: 1. Press „ to display the Plot Setup screen. Initially, none of the plots are defined. 2. Move the cursor to highlight the plot n[...]

Chapter 16: Statistics and Data Plots 265 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 265 of 22 Item Description Freq Type the column number that contains a “weight” value for each data point. If you do not enter a column number, all data points are as[...]

266 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 266 of 22 Data points from x and y are plotted as coordinate pairs. Therefore, the columns or lists that you specify for x and y must be the same length. ¦ Plotted point[...]

Chapter 16: Statistics and Data Plots 267 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 267 of 22 This plots one-variable data as a histogram. The x axis is divided into equal widths called buckets or bars. The height of each bar (its y value) indicates how [...]

268 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 268 of 22 Press ¥# to display the Y= Editor. Initially, the nine stat plots are located “off the top” of the screen, above the y(x) functions. However, the PLOTS ind[...]

Chapter 16: Statistics and Data Plots 269 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 269 of 22 Stat plots are displayed on the current graph, and they use the Window variables that are defined in the Window Editor. Use ¥$ to display the Window Editor. Yo[...]

270 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 270 of 22 In a data variable, you can use any column in the Data/Matrix Editor to specify a frequency value (or weight) for the data points on each row. A frequency value[...]

Chapter 16: Statistics and Data Plots 271 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 271 of 22 Suppose you enter the test scores from a class that has 10th and 11th grade students. You want to analyze the scores for the whole class, but you also want to a[...]

272 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 272 of 22 When you collect data with the CBL 2/CBL, that data is initially stored in the CBL 2/CBL unit itself. You must then retrieve the data (transfer it to the TI - 8[...]

Chapter 16: Statistics and Data Plots 273 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 273 of 22 You can create a new data variable that consists of the necessary CBL 2/CBL list variables. ¦ From the Home screen or a program, use the NewData command. NewDa[...]

274 Chapter 16: Statistics and Data Plots 16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/2 3/01 2:17 PM Page 274 of 22[...]

Chapter 17: Programming 275 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 275 of 40 Chapter 17: Pr ogramming Preview of Programming....................................................................... 276 Running an Existing Program .....................................[...]

276 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 276 of 40 Steps ³ TI . 89 Keystrokes › TI . 92 Plus Keystrokes Display 1. Start a new program on the Program Editor. O 73 O 73 2. Type PROG1 (with no spaces) as the name of the new program variab[...]

Chapter 17: Programming 277 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 277 of 40 Steps ³ TI - 89 Keystrokes › TI - 92 Plus Keystrokes Display 5. Go to the Home screen. Enter the program name, followed by a set of parentheses. You must include ( ) even when there are[...]

278 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 278 of 40 On the Home screen: 1. Type the name of the program. 2. You must always type a set of parentheses after the name. Some programs require you to pass an argument to the program. prog1() prog[...]

Chapter 17: Programming 279 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 279 of 40 Depending on the commands in the program, the TI - 89 / TI - 92 Plus automatically displays information on the applicable screen. ¦ Most output and input commands use the Program I/O scre[...]

280 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 280 of 40 1. Press O and then select 7:Program Editor . 2. Select 3:New . 3. Specify the applicable information for the new program or function. Item Lets you: Type Select whether to create a new pr[...]

Chapter 17: Programming 281 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 281 of 40 You can leave the Program Editor and go to another application at any time. To return to the program or function that was displayed when you left the Program Editor, press O 7 and select 1[...]

282 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 282 of 40 On a blank template, you can begin entering commands for your new program. You enter and edit program commands in the Program Editor by using the same techniques used to enter and edit tex[...]

Chapter 17: Programming 283 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 283 of 40 When you run a program, the program lines are executed in sequential order. However, some commands alter the program flow. For example: ¦ Control structures such as If...EndIf commands us[...]

284 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 284 of 40 The following program draws a circle on the Graph screen and then draws a horizontal line across the top of the circle. Three values must be passed to the program: x and y coordinates for [...]

Chapter 17: Programming 285 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 285 of 40 Functions (as well as programs) are ideal for repetitive calculations or tasks. You only need to write the function once. Then you can reuse it as many times as necessary. Functions, howev[...]

286 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 286 of 40 When you create a new function in the Program Editor, the TI - 89 / TI - 92 Plus displays a blank “template”. If the function requires input, one or more values must be passed to the f[...]

Chapter 17: Programming 287 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 287 of 40 To call a separate program, use the same syntax used to run the program from the Home screen. :subtest1() :Prgm :For i,1,4,1 : subtest2(i,i ù 1000) :EndFor :EndPrgm To define an internal [...]

288 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 288 of 40 Scope Description System (Global) V ariables Variables with reserved names that are created automatically to store data about the state of the TI - 89 / TI - 92 Plus . For example, Window [...]

Chapter 17: Programming 289 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 289 of 40 When evaluating a user-defined function or running a program, you can specify an argument that includes the same variable that was used to define the function or create the program. Howeve[...]

290 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 290 of 40 The following program segment shows a For...EndFor loop (which is discussed later in this chapter). The variable i is the loop counter. In most cases, the variable i is used only while the[...]

Chapter 17: Programming 291 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 291 of 40 If you want a function or program to perform symbolic calculations, you must use a global variable instead of a local. However, you must be certain that the global variable does not alread[...]

292 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 292 of 40 A string is a sequence of characters enclosed in "quotes". In programming, strings allow the program to display information or prompt the user to perform some action. For example[...]

Chapter 17: Programming 293 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 293 of 40 Command Description # Converts a string into a variable name. This is called indirection. & Appends (concatenates) two strings into one string. char Returns the character that correspo[...]

294 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 294 of 40 ¦ Type the operator directly from the keyboard. — or — ¦ Press 2I and select 8:Test . Then select the operator from the menu. — or — ¦ Display the built-in functions. Press: TI [...]

Chapter 17: Programming 295 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 295 of 40 To enter If...EndIf structures, use the Program Editor’s „ Control toolbar menu. The If command is available directly from the „ menu. To see a submenu that lists other If structures[...]

296 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 296 of 40 To execute one group of commands if a conditional test is true and a different group if the condition is false, use this structure: :If x>5 Then : Disp "x is greater than 5" :[...]

Chapter 17: Programming 297 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 297 of 40 To enter most of the loop-related commands, use the Program Editor’s „ Control toolbar menu. When you select a loop, the loop command and its corresponding End command are inserted at [...]

298 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 298 of 40 For example: :For i,0,5,1 : Disp i :EndFor :Disp i A While...EndWhile loop repeats a block of commands as long as a specified condition is true. The syntax of the While command is: While c[...]

Chapter 17: Programming 299 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 299 of 40 A Loop...EndLoop creates an infinite loop, which is repeated endlessly. The Loop command does not have any arguments. :Loop : -------- : -------- :EndLoop :-------- Typically, the loop con[...]

300 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 300 of 40 Command Description getConfg Returns a list of calculator characteristics. getFold Returns the name of the current folder. getMode Returns the current setting for a specified mode. getUnit[...]

Chapter 17: Programming 301 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 301 of 40 To enter most of the commonly used input/output commands, use the Program Editor’s … I/O toolbar menu. To see a submenu that lists additional commands, select 1:Dialog . Command Descri[...]

302 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 302 of 40 Command Description Clr Z O Clears the Program I/O screen. Disp Displays an expression or string on the Program I/O screen. Disp can also display the current contents of the Program I/O sc[...]

Chapter 17: Programming 303 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 303 of 40 When you create a custom menu, you can let the user turn it on and off manually, or you can let a program turn it on and off automatically. To: Do this: Turn on the custom menu From the Ho[...]

304 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 304 of 40 For example: :Custom :Title "Vars" :Item "L1":Item "M1":Item "Prgm1":Item "Func1":Item "Data1" :Item "Text1":Item &quo[...]

Chapter 17: Programming 305 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 305 of 40 Command Description DispTbl Displays the current contents of the Table screen. setTable Sets the Graph <–> Table or Independent table parameters. (To set the other two table parame[...]

306 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 306 of 40 Command Description AndPic Displays the Graph screen and superimposes a stored graph picture by using AND logic. CyclePic Animates a series of stored graph pictures. NewPic Creates a graph[...]

Chapter 17: Programming 307 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 307 of 40 When drawing an object, you can use either of two coordinate systems to specify a location on the screen. ¦ Pixel coordinates — Refer to the pixels that physically make up the screen. T[...]

308 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 308 of 40 Command Description Circle or PxlCrcl Draws, erases, or inverts a circle with a specified center and radius. DrawSlp Draws a line with a specified slope through a specified point. Line or [...]

Chapter 17: Programming 309 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 309 of 40 Use the Program Editor’s … I/O toolbar menu to enter the commands in this section. 1. Press … and select 8:Link . 2. Select a command. When two TI - 89 / TI - 92 Plus calculators are[...]

310 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 310 of 40 The first step in debugging your program is to run it. The TI - 89 / TI - 92 Plus automatically checks each executed command for syntax errors. If there is an error, a message indicates th[...]

Chapter 17: Programming 311 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 311 of 40 This example is the program given in the preview at the beginning of the chapter. Refer to the preview for detailed information. :prog1() :Prgm :Request "Enter an integer",n :exp[...]

312 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 312 of 40 This example uses Dialog...EndDlog to create dialog boxes for input and output. It uses Loop...EndLoop to calculate the result. :prog4() :Prgm :Dialog : Title "Enter an integer" [...]

Chapter 17: Programming 313 17progrm.doc TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 01/18/02 3:05 PM Printed: 01/18/02 3:27 PM Page 313 of 40 Assembly-language program s, as well as keystroke programs, are available on the Texas Instruments web site at: education.ti.com The programs available from this site provide additional fu[...]

314 Chapter 17: Programming 17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 314 of 40 On the Home screen, you can use keyboard shortcuts to run up to nine user-defined or assembly-language programs. However, the programs must have the following names. On Home screen, press:[...]

Chapter 18: Text Editor 315 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 315 of 18 Chapter 18: T ext Editor Preview of Text Operations .................................................................. 316 Starting a Text Editor Session ...................................[...]

316 Chapter 18: Text Editor 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 316 of 18 Steps ³ TI . 89 Keystrokes › TI . 92 Plus Keystrokes Display 1. Start a new session on the Text Editor. O 83 O 83 2. Create a text variable called TEST , which will automatically store a[...]

Chapter 18: Text Editor 317 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 317 of 18 1. Press O and then select 8:Text Editor . 2. Select 3:New . The NEW dialog box is displayed. 3. Specify a folder and text variable that you want to use to store the new session. Item Descr[...]

318 Chapter 18: Text Editor 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 318 of 18 You can leave the Text Editor and go to another application at any time. To return to the session that was displayed when you left the Text Editor, press O 8 and select 1:Current . To leave[...]

Chapter 18: Text Editor 319 18txted.doc TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 01/18/02 1:19 PM Printed: 01/18/02 2:43 PM Page 319 of 18 When you create a new Text Editor session, you see an empty screen. When you open a previous session or return to the current session, you see the existing text for that session. You do not[...]

320 Chapter 18: Text Editor 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 320 of 18 On the TI - 89 , while either type of alpha-lock is on: ¦ To type a period, comma, or other character that is the primary function of a key, you must turn alpha-lock off. ¦ To type a seco[...]

Chapter 18: Text Editor 321 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 321 of 18 Cutting and copying both place highlighted text into the clipboard of the TI - 89 / TI - 92 Plus . Cutting deletes the text from its current location (used to move text) and copying leaves [...]

322 Chapter 18: Text Editor 18txted.doc TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 01/18/02 3:33 PM Printed: 01/18/02 3:34 PM Page 322 of 18 By default, the TI - 89 / TI - 92 Plus is in insert mode. To toggle between insert and overtype mode, press 2/ . If the TI . 89 / TI . 92 Plus is in: The next character you type: Will be in[...]

Chapter 18: Text Editor 323 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 323 of 18 2. Use the TI-GRAPH LINK é software to send the file from the computer to the TI - 89 / TI - 92 Plus . a. Use the TI-GRAPH LINK cable to connect the computer and the calculator. b. Be sure[...]

324 Chapter 18: Text Editor 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 324 of 18 1. Press 2¿ . 2. Select the applicable category. A menu lists the characters in that category. 3. Select a character. You may need to scroll through the menu. The keyboard map shows severa[...]

Chapter 18: Text Editor 325 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 325 of 18 TI . 89 keyboard map feature shortcuts: TI . 92 Plus keyboard map feature shortcuts: GREEK ( ¥ c ) — Accesses the Greek character set (described later in this section). SYSDATA ( ¥ b ) [...]

326 Chapter 18: Text Editor 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 326 of 18 Pressing an accent mark key d oes not display an accen ted letter. The accent mark will be added to the next letter you press. 1. Press 2 and then the key for the accent mark. 2. Press the [...]

Chapter 18: Text Editor 327 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 327 of 18 Several keys let you access lowercase and uppercase Greek letters. For example: On the TI . 89: On the TI . 92 Plus: 1. Press ¥ c to access the Greek character set. 2. Press ¥ c j + lette[...]

328 Chapter 18: Text Editor 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 328 of 18 In the Text Editor: 1. Place the cursor on the line for the command. 2. Press „ to display the Command toolbar menu. 3. Select 1:Command . “ C ” is displayed at the beginning of the t[...]

Chapter 18: Text Editor 329 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 329 of 18 With a split screen, you can view your command script and see the result of an executed command at the same time. To: Press: Split the screen … and select 1:Script view . Return to a full[...]

330 Chapter 18: Text Editor 18txted.doc TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 01/18/02 3:33 PM Printed: 01/18/02 3:35 PM Page 330 of 18 In the Text Editor, you can specify a variable name as a print object. When you print the report by using TI-GRAPH LINK , the TI - 89 / TI - 92 Plus substitutes the contents of the variable[...]

Chapter 18: Text Editor 331 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 331 of 18 General Steps For Detailed Information 1. Connect the TI - 89 / TI - 92 Plus to your computer via the TI-GRAPH LINK cable. Refer to the manual that came with your TI-GRAPH LINK . 2. Use the[...]

332 Chapter 18: Text Editor 18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 332 of 18[...]

Chapter 19: Numeric Solver 333 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 333 of 10 Chapter 19: Numeric Solver Preview of the Numeric Solver ............................................................ 334 Displaying the Solver and Entering an Equation .............[...]

334 Chapter 19: Numeric Solver 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 334 of 10 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. Display the Numeric Solver. O 9 O 9 2. Enter the equation. When you press ¸ or D , th e screen lists the variables use[...]

Chapter 19: Numeric Solver 335 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 335 of 10 To display the Numeric Solver, press O 9. The Numeric Solver screen shows the last entered equation, if any. On the eqn: line, type in your equation. You can: For example: Type an eq[...]

336 Chapter 19: Numeric Solver 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 336 of 10 Your most recently entered equations (up to 11 with the default setting) are retained in memory. To recall one of these equations: 1. From the Numeric Solver screen, press ‡ . A di[...]

Chapter 19: Numeric Solver 337 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 337 of 10 A fter typing your equation on the eqn: line, press ¸ or D . The screen lists the variables in the order they appear in the equation. If a variable is already defined, its value is [...]

338 Chapter 19: Numeric Solver 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 338 of 10 ¦ If the equation contains a system variable ( xmin , xmax , etc.), that variable is not listed. The solver uses the system variable’s existing value. ¦ Although you can use a sy[...]

Chapter 19: Numeric Solver 339 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 339 of 10 With all known variables defined: 1. Move the cursor to the unknown variable. 2. Press „ Solve . A é marks the solution and left ì rt . The é disappears when you edit a value, m[...]

340 Chapter 19: Numeric Solver 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 340 of 10 In the Numeric Solver, leave the cursor on the unknown variable. Press … and select: 1:Graph View – or – 3:ZoomStd – or – 4:ZoomFit The graph is shown in a split screen, wh[...]

Chapter 19: Numeric Solver 341 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 341 of 10 To use the graph cursor to select an initial guess: 1. Move the cursor (either free-moving or trace) to the point that you want to use as the new guess. 2. Use 2a to make the Numeric[...]

342 Chapter 19: Numeric Solver 19SOLVER.DOC TI-89/TI-92 Plus: Numeric Solver (English) Susan Gullord Revised: 02/23/01 1:16 PM Printed: 02/23/01 2:19 PM Page 342 of 10[...]

Chapter 20: Number Bases 343 20NUMBAS.DOC TI-89/TI-92 Plus: Number Bases (English) Susan Gullord Revised: 02/23/01 1:17 PM Printed: 02/23/01 2:19 PM Page 343 of 6 Chapter 20: Number Bases Preview of Number Bases ..................................................................... 344 Entering and Converting Number Bases............................[...]

344 Chapter 20: Number Bases 20NUMBAS.DOC TI-89/TI-92 Plus: Number Bases (English) Susan Gullord Revised: 02/23/01 1:17 PM Printed: 02/23/01 2:19 PM Page 344 of 6 Steps ³ TI . 89 Keystrokes › TI . 92 Plus Keystrokes Display 1. Display the MODE dialog box, Page 2. For Base mode, select DEC as the default number base. Integer results are displayed[...]

Chapter 20: Number Bases 345 20NUMBAS.DOC TI-89/TI-92 Plus: Number Bases (English) Susan Gullord Revised: 02/23/01 1:17 PM Printed: 02/23/01 2:19 PM Page 345 of 6 To enter a binary number, use the form: 0b binaryNumber (for example: 0b11100110 ) To enter a hexadecimal number, use the form: 0h hexadecimalNumber (for example: 0h89F2C ) If you enter a[...]

346 Chapter 20: Number Bases 20NUMBAS.DOC TI-89/TI-92 Plus: Number Bases (English) Susan Gullord Revised: 02/23/01 1:17 PM Printed: 02/23/01 2:19 PM Page 346 of 6 1. Press 3„ to display Page 2 of the MODE screen. 2. Scroll to the Base mode, press B , and select the applicable setting. 3. Press ¸ to close the MODE screen. The Base mode controls t[...]

Chapter 20: Number Bases 347 20NUMBAS.DOC TI-89/TI-92 Plus: Number Bases (English) Susan Gullord Revised: 02/23/01 1:17 PM Printed: 02/23/01 2:19 PM Page 347 of 6 Operator with syntax Description not integer Returns the one’s complement, where each bit is flipped. · integer Returns the two’s complement, which is the one’s complement + 1. int[...]

348 Chapter 20: Number Bases 20NUMBAS.DOC TI-89/TI-92 Plus: Number Bases (English) Susan Gullord Revised: 02/23/01 1:17 PM Printed: 02/23/01 2:19 PM Page 348 of 6 Function with syntax Description rotate( integer ) – or – rotate( integer , #ofRotations ) If #ofRotations is: ¦ omitted — bits rotate once to the right (default is ë 1). ¦ negat[...]

Chapter 21: Memory and Variable Management 349 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 349 of 16 Chapter 21: Memor y and V ariable Management Preview of Memory and Variable Management ................................. 350 Checking and Resetting Memor[...]

350 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 350 of 16 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 1. From the Home screen, assign variables with the following variable types. Expression: 5 ! [...]

Chapter 21: Memory and Variable Management 351 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 351 of 16 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 5. Highlight the f function variable, and view its contents. Notice that the function was ass[...]

352 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 352 of 16 Steps ³ TI-89 Keystrokes › TI-92 Plus Keystrokes Display 14. Use VAR-LINK to unarchive the variable. 2° (use D to highlight x1 ) ƒ 9 2° (use D to h[...]

Chapter 21: Memory and Variable Management 353 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 353 of 16 Press 2¯ . To close the screen, press ¸ . To reset the memory, use the following procedure. From the MEMORY screen: 1. Press ƒ . 2. Select the applica[...]

354 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 354 of 16 The Flash ROM free displayed on the Memory screen 2¯ is shared by archive and Flash applications. This Flash ROM is divided into sectors of 64-KB memory[...]

Chapter 21: Memory and Variable Management 355 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 355 of 16 Press 2° . By default, the VAR-LINK screen lists all user- defined variables in all folders and with all data types. This... Indicates this... … Link [...]

356 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 356 of 16 If you have a lot of variables and/or folders, or Flash applications, it may be difficult to locate a particular variable. By changing VAR- LINK ’s vie[...]

Chapter 21: Memory and Variable Management 357 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 357 of 16 You can show all variable types except ASM , DATA , or GDB . For example, you must open a DATA variable in the Data/Matrix Editor. 1. On VAR-LINK , move [...]

358 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 358 of 16 For information about using folders, refer to Chapter 5. 1. On VAR-LINK , press ƒ Manage and select 5:Create Folder . 2. Type a unique name, and press ?[...]

Chapter 21: Memory and Variable Management 359 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 359 of 16 From the following applications, you can paste a variable name to the current cursor location. ¦ Home screen, Y= Editor, Table Editor, or Data/Matrix Ed[...]

360 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 360 of 16 The user data archive lets you: ¦ Store data, programs, or any other variables to a safe location where they cannot be edited or deleted inadvertently. [...]

Chapter 21: Memory and Variable Management 361 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 361 of 16 To archive or unarchive: 1. Press 2° to display the VAR-LINK screen. 2. Select one or more variables, which can be in different folders. (You can select[...]

362 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 362 of 16 When you see the message to the right: ¦ To continue archiving, press ¸ . – or – ¦ To cancel, press N . After garbage collection, depending on how[...]

Chapter 21: Memory and Variable Management 363 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 363 of 16 When you unarchive a variable, it is copied to RAM but is not actually deleted from the user data archive memory. Unarchived variables are “marked for [...]

364 Chapter 21: Memory and Variable Management 21MEMORY.DOC TI-89/TI-92 Plus:Memory & Variables Mgmt (English) Susan Gullord Revised: 02/23/01 1:20 PM Printed: 02/23/ 01 2:19 PM Page 364 of 16 The Memory Error message is displayed if there is not enough free RAM to access the archived variable. This may cause you to ask, “If the variable is i[...]

Chapter 22: Linking and Upgrading 365 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 365 of 18 Chapter 22: Linking and Upgrading Linking Two Units .................................................................................. 366 Transmitting Variables, Flash A[...]

366 Chapter 22: Linking and Upgrading 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 366 of 18 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 366 of 18 Using firm pressure, insert [...]

Chapter 22: Linking and Upgrading 367 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 367 of 18 Most Flash applications will transfer only from a TI - 89 to a TI - 89 or from a TI - 92 Plus to a TI - 92 Plus . You cannot send Flash applications to a TI - 92 unless i[...]

368 Chapter 22: Linking and Upgrading 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 368 of 18 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 368 of 18 Unlocked and unarchived vari[...]

Chapter 22: Linking and Upgrading 369 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 369 of 18 Shown on: Message and Description: Sending unit This is displayed after several seconds if: ¦ A cable is not attached to the sending unit’s I/O port. — or — ¦ A r[...]

370 Chapter 22: Linking and Upgrading 22link.doc TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 01/18/02 1:31 PM Printed: 01/19/02 9:11 AM Page 370 of 18 22link.doc TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 01/18/02 1:31 PM Printed: 01/19/02 9:11 AM Page 370 of 18 1. Press 2 ° to display the[...]

Chapter 22: Linking and Upgrading 371 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 371 of 18 SendCalc sends a variable to the link port, where a linked calculator can receive the variable value. The linked calculator must be on the Home screen or must execute Get[...]

372 Chapter 22: Linking and Upgrading 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 372 of 18 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 372 of 18 This procedure assumes that:[...]

Chapter 22: Linking and Upgrading 373 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 373 of 18 The term product software includes these two types of base code upgrades: ¦ Maintenance upgrades (which are released free of charge). ¦ Feature upgrades (some of which [...]

374 Chapter 22: Linking and Upgrading 22link.doc TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 01/18/02 1:31 PM Printed: 01/19/02 9:11 AM Page 374 of 18 22link.doc TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 01/18/02 1:31 PM Printed: 01/19/02 9:11 AM Page 374 of 18 When you install a product s[...]

Chapter 22: Linking and Upgrading 375 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 375 of 18 If the sending TI - 89 or TI - 92 Plus has its original product software (base code) or a free maintenance upgrade, the receiving TI - 89 or TI - 92 Plus does not need a [...]

376 Chapter 22: Linking and Upgrading 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 376 of 18 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 376 of 18 During the transfer, the rec[...]

Chapter 22: Linking and Upgrading 377 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 377 of 18 Most error messages are displayed on the sending unit. Depending on when the error occurs during the transfer process, you may see an error message on the receiving unit.[...]

378 Chapter 22: Linking and Upgrading 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 378 of 18 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 378 of 18 The ID list feature provides[...]

Chapter 22: Linking and Upgrading 379 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 379 of 18 After all the IDs are collected onto one calculator, use the TI - GRAPH LINK é software and a computer-to-calculator cable (available separately) to store the ID list on[...]

380 Chapter 22: Linking and Upgrading 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 380 of 18 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 380 of 18 All data is compatible betwe[...]

Chapter 22: Linking and Upgrading 381 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 381 of 18 All user-defined variables, including functions and programs, can be sent from a TI - 92 to a TI - 89 or TI - 92 Plus . However, they may behave differently. Examples are[...]

382 Chapter 22: Linking and Upgrading 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 382 of 18 22LINK.DOC TI-89/TI-92 Plus: Linking and Upgrading (English) Susan Gullord Revised: 02/23/01 1:23 PM Printed: 02/23/01 2:20 PM Page 382 of 18[...]

Chapter 23: Activities 383 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 383 of 26 Chapter 23: Activities Analyzing the Pole-Corner Problem .................................................... 384 Deriving the Quadratic Formula ..............................................[...]

384 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 384 of 26 The maximum length of a pole c is the shortest line segment touching the interior corner and opposite sides of the two hallways as shown in the diagram below. Hint: Use proportional sides and[...]

Chapter 23: Activities 385 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 385 of 26 5. Compute the exact maximum length of the pole. Enter: c( 2± ) 6. Compute the approximate maximum length of the pole. Result: Approximately 20.8097 feet. Hint: Use the auto-paste feature to[...]

386 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 386 of 26 Perform the following steps to derive the quadratic formula by completing the square of the generalized quadratic equation. 1. Clear all one-character variables in the current folder. TI - 89[...]

Chapter 23: Activities 387 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 387 of 26 7. Factor the result using the factor() function. 8. Multiply both sides of the equation by 4a ñ . 9. Take the square root of both sides of the equation with the constraint that a>0 and b[...]

388 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 388 of 26 Perform these steps to generate a random matrix, augment and find the identity matrix, and then solve to find an invalid value of the inverse. 1. On the Home screen, use RandSeed to set the r[...]

Chapter 23: Activities 389 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 389 of 26 Perform the following steps to observe where the graphs of the functions y1(x)=cos(x) and y2(x)=sin(x) intersect. 1. In the Y= Editor, set y1(x)=cos(x ) and 2(x)=sin(x) . 2. In the Window Edi[...]

390 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 390 of 26 Perform the following steps to define a function for the surface area of a parallelepiped, draw a 3D graph, and use the Trace tool to find a point close to the minimum surface area. 1. On the[...]

Chapter 23: Activities 391 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 391 of 26 Perform the following steps to solve the problem analytically on the Home screen. 1. Solve for x and y in terms of v . Enter: solve( d (sa(x,y,v),x)=0 and d (sa(x,y,v),y)=0,{x,y}) 2. Find the[...]

392 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 392 of 26 Perform the following steps to write a script using the Text Editor, test each line, and observe the results in the history area on the Home screen. 1. Open the Text Editor, and create a new [...]

Chapter 23: Activities 393 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 393 of 26 4. Press † repeatedly to execute each line in the script one at a time. 5. To see the results of the script on a full-sized screen, go to the Home screen. Note: Press … and select 2:Clear[...]

394 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 394 of 26 To examine the decomposition of the rational function f(x)=(x òì 10x ñì x+50)/(x ì 2) on a graph: 1. On the Home screen, enter the rational function as shown below and store it in a func[...]

Chapter 23: Activities 395 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 395 of 26 6. Add the original function f(x) to y3(x) and select the square graphing style. 7. In the Window Editor, set the window variables to: x= [ ë 10,15,10] y= [ ë 100,100,10] 8. Draw the graph.[...]

396 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 396 of 26 Each student is placed into one of eight categories depending on the student’s sex and academic year (freshman, sophomore, junior, or senior). The data (weight in pounds) and respective cat[...]

Chapter 23: Activities 397 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 397 of 26 Perform the following steps to compare the weight of high school students to their year in school. 1. Start the Data/Matrix Editor, and create a new Data variable named students . 2. Enter th[...]

398 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 398 of 26 7. Press ƒ , and modify the Include Categories item fo r Plot 2 through Plot 5 to the following: Plot 2: {1,2} (freshman boys, girls) Plot 3: {7,8} (senior boys, girls) Plot 4: {1,3,5,7} (al[...]

Chapter 23: Activities 399 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 399 of 26 Program Instruction Description :cooltemp() :Prgm :Local i :setMode("Graph","FUNCTION") :PlotsOff :FnOff :ClrDraw :ClrGraph :ClrIO :-10 ! xmin:99 ! xmax:10 ! xscl :-20 ! y[...]

400 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 400 of 26 Perform the following steps to study the flight of a hit baseball that has an initial velocity of 95 feet per second and an initial angle of 32 degrees. 1. Set the modes for Page 1 as shown i[...]

Chapter 23: Activities 401 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 401 of 26 5. Set the Window variables to: t values= [0,4,.1] x values= [0,300,50] y values= [0,100,10] 6. Switch to the right side and display the graph. 7. Display the TABLE SETUP dialog box, and chan[...]

402 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 402 of 26 Perform the following steps to expand the cubic polynomial (x ì 1)(x ì i )(x+ i ) , find the absolute value of the function, graph the modulus surface, and use the Trace tool to explore the[...]

Chapter 23: Activities 403 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 403 of 26 6. In the Y=Editor, press: TI - 89: ¥ Í TI - 92 Plus: ¥ F and set the Graph Format variables to: Axes= ON Labels= ON Style= HIDDEN SURFACE 7. Graph the modulus surface. The 3D graph is use[...]

404 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 404 of 26 Perform the following steps to find the interest rate ( i ) of an annuity where the starting principal ( p ) is 1,000, number of compounding periods ( n ) is 6, and the future value ( s ) is [...]

Chapter 23: Activities 405 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 405 of 26 In the Program Editor, define the following Time-Value-of-Money ( tvm ) function where temp1 = number of payments, temp2 = annual interest rate, temp3 = present value, temp4 = monthly payment[...]

406 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 406 of 26 Enter the expressions shown below on the Home screen. 1. factor(x^3 ì 5x) ¸ displays a rational result. 2. factor(x^3+5x) ¸ displays a rational result. 3. factor(x^3 ì 5x,x) ¸ displays a[...]

Chapter 23: Activities 407 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 407 of 26 In the Program Editor, define drawball() as a function that can be called with two parameters. The first parameter is a list where each element is the number of balls of a certain color. The [...]

408 Chapter 23: Activities 23ACTS.DOC TI-89/TI-92 Plus: Activities (English) Susan Gullord Revised: 02/23/01 1:24 PM Printed: 02/23/01 2:20 PM P age 408 of 26[...]

Appendix A: Functions and Instructions 409 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 409 of 132 Name of the function or instruction. Key or menu for entering the name. You can also type the name. Syntax line shows the order and the type of arguments that you suppl[...]

410 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 410 of 132 | (" with ") 538 cFactor() 419 comDenom() 421 cSolve() 425 cZeros 430 expand() 445 factor() 447 getDenom() 452 getNum() 453 nSolve() 474 propFrac() 482 randPo[...]

Appendix A: Functions and Instructions 411 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 411 of 132 + (add) 526 ì (subtract) 526 ù (multiply) 527 à (divide) 527 ë (negate) 528 % (percent) 528 ! (factorial) 531 ‡ () (sqr. root) 5 3 3 ^ (power) 534 ¡ (degree) 535[...]

412 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 412 of 132 = 529 ≠ 529 < 529 ≤ 530 > 530 ≥ 530 # (indirection) 5 3 4 ! (store) 539 ¦ (comment) 539 and 414 ans() 416 Archive 416 ClrErr 420 ClrGraph 420 ClrHome 421 C[...]

Appendix A: Functions and Instructions 413 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 413 of 132 & (append) 532 # (indirec tion) 5 34 char() 419 dim() 437 expr() 446 format() 450 inString() 458 left() 460 mid() 468 ord() 476 right() 491 rotate() 491 shift() 499[...]

414 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 414 of 132 abs() MATH/Number menu abs ( expression1 ) ⇒ expression abs ( list1 ) ⇒ list abs ( matrix1 ) ⇒ matrix Returns the absolute value of the argument. If the argument [...]

Appendix A: Functions and Instructions 415 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 415 of 132 AndPic CATALOG AndPic picVar [, row, column ] Displays the Graph screen and logically “ANDS” the picture stored in picVar and the current graph screen at pixel coor[...]

416 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 416 of 132 ans( ) 2 ± key ans ( ) ⇒ value ans ( integer ) ⇒ value Returns a previous answer from the Home screen history area. integer , if included, specifies which previous[...]

Appendix A: Functions and Instructions 417 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 417 of 132 augment( ) MATH/Matrix menu augment ( list1, list2 ) ⇒ list Returns a new list that is list2 appended to the end of list1 . augment({1, ë 3,2},{5,4}) ¸ {1 ë 3 2 5 [...]

418 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 418 of 132 BldData CATALOG BldData [ dataVar ] Creates data variable dataVar based on the information used to plot the current graph. BldData is valid in all graphing modes. If da[...]

Appendix A: Functions and Instructions 419 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 419 of 132 cFactor( ) MATH/Algebra/Complex menu cFactor ( expression1 [ , var ] ) ⇒ expression cFactor ( list1 [ ,var ] ) ⇒ list cFactor ( matrix1 [ ,var ] ) ⇒ matrix cFacto[...]

420 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 420 of 132 Circle CATALOG Circle x , y , r [ , drawMode ] Draws a circle with its center at window coordinates ( x , y ) and with a radius of r . x , y , and r must be real values[...]

Appendix A: Functions and Instructions 421 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 421 of 132 ClrHome CATALOG ClrHome Clears all items stored in the entry() and ans() Home screen history area. Does not clear the current entry line. While viewing the Home screen,[...]

422 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 422 of 132 comDenom( expression1,var ) returns a reduced ratio of numerator and denominator expanded with respect to var . The terms and their factors are sorted with var as the m[...]

Appendix A: Functions and Instructions 423 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 423 of 132 cos( ) TI - 89 : 2X key TI - 92 Plus: X key cos ( expression1 ) ⇒ expression cos ( list1 ) ⇒ list cos( expression1 ) returns the cosine of the argument as an expres[...]

424 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 424 of 132 cos ê () TI - 89: ¥R key TI - 92 Plus: 2R key cos ê ( expression1 ) ⇒ expression cos ê ( list1 ) ⇒ list cos ê ( expression1 ) returns the angle whose cosine is[...]

Appendix A: Functions and Instructions 425 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 425 of 132 cosh ê ( squareMatrix1 ) ⇒ squareMatrix Returns the matrix inverse hyperbolic cosine of squareMatrix1 . This is not the same as calculating the inverse hyperbolic co[...]

426 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 426 of 132 cSolve() starts with exact symbolic methods. Except in EXACT mode, cSolve() also uses iterative approximate complex polynomial factoring, if necessary. Note: See also c[...]

Appendix A: Functions and Instructions 427 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 427 of 132 Simultaneous polynomial equations can have extra variables that have no values , but represent given numeric values that could be substituted later. cSolve(u_ ù v_ ì [...]

428 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 428 of 132 CubicReg MATH/Statistics/Regressions menu CubicReg list1 , list2 [ , [ list3 ] [ , list4 , list5 ] ] Calculates the cubic polynomial regression and updates all the stat[...]

Appendix A: Functions and Instructions 429 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 429 of 132 Custom 2¾ key Custom block EndCustm Sets up a toolbar that is activated when you press 2¾ . It is very similar to the ToolBar instruction except that Title and Item s[...]

430 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 430 of 132 cZeros( ) MATH/Algebra/Complex menu cZeros ( expression , var ) ⇒ list Returns a list of candidate real and non-real values of var that make expression =0. cZeros() d[...]

Appendix A: Functions and Instructions 431 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 431 of 132 Simultaneous polynomials can have extra variables that have no values , but represent given numeric values that could be substituted later. cZeros({u_ ù v_ ì u_ ì (c[...]

432 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 432 of 132 d () 2= key or MATH/Calculus menu d ( expression1 , var [, order ] ) ⇒ expression d ( list1,var [, order ] ) ⇒ list d ( matrix1,var [, order ] ) ⇒ matrix Returns [...]

Appendix A: Functions and Instructions 433 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 433 of 132 0b binaryNumber 0h hexadecimalNumber Without a prefix, integer1 is treated as decimal. The result is displayed in decimal, regardless of the Base mode. Define CATALOG D[...]

434 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 434 of 132 Define progName ( arg1Name, arg2Name, ... ) = Prgm block EndPrgm Creates progName as a program or subprogram, but cannot return a result using Return . Can execute a bl[...]

Appendix A: Functions and Instructions 435 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 435 of 132 Apply solve() to an implicit solution if you want to try to convert it to one or more equivalent explicit solutions. deSolve(y'=(cos(y))^2 ù x,x,y) ¸ tan(y)= x ?[...]

436 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 436 of 132 deSolve( 2ndOrderOde and boundaryCondition1 and boundaryCondition2 , independentVar , dependentVar ) ⇒ a particular solution Returns a particular solution that satisf[...]

Appendix A: Functions and Instructions 437 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 437 of 132 Dialog CATALOG Dialog block EndDlog Generates a dialog box when the program is executed. block can be either a single statement or a series of statements separated with[...]

438 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 438 of 132 DispG CATALOG DispG Displays the current contents of the Graph screen. In function graphing mode: Program segment: © :5 ù cos ( x ) ! y 1( x ) : ë 1 0 ! xmin : 1 0 ![...]

Appendix A: Functions and Instructions 439 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 439 of 132 dotP( ) MATH/Matrix/Vector ops menu dotP ( list1 , list2 ) ⇒ expression Returns the “dot” product of two lists. dotP({a,b,c},{d,e,f}) ¸ a ø d + b ø e + c ø f [...]

440 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 440 of 132 DrawPol CATALOG DrawPol expression [ , q min ] [ , q max ] [ , q step ] Draws the polar graph of expression , using q as the independent variable. Defaults for q min , [...]

Appendix A: Functions and Instructions 441 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 441 of 132 DrwCtour CATALOG DrwCtour expression DrwCtour list Draws contours on the current 3D graph at the z values specified by expression or list . The 3D graphing mode must al[...]

442 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 442 of 132 e ^( squareMatrix1 ) ⇒ squareMatrix Returns the matrix exponential of squareMatrix1 . This is not the same as calculating e raised to the power of each element. For i[...]

Appendix A: Functions and Instructions 443 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 443 of 132 EndCustm See Custom , page 429. EndDlog See Dialog , page 437. EndFor See For , page 450. EndFunc See Func , page 451. EndIf See If , page 456. EndLoop See Loop , page [...]

444 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 444 of 132 Exec CATALOG Exec string [ , expression1 ] [ , expression2 ] ... Executes a string consisting of a seri es of Motorola 68000 op-codes. Thes e codes act as a form of an [...]

Appendix A: Functions and Instructions 445 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 445 of 132 expand( ) MATH/Algebra menu expand ( expression1 [ , var ] ) ⇒ expression expand ( list1 [ ,var ] ) ⇒ list expand ( matrix1 [ ,var ] ) ⇒ matrix expand( expression[...]

446 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 446 of 132 expand( expression1, [ var ] ) also distributes logarithms and fractional powers regardless of var . For increased distribution of logarithms and fractional powers, ine[...]

Appendix A: Functions and Instructions 447 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 447 of 132 factor( ) MATH/Algebra menu factor ( expression1 [ , var ] ) ⇒ expression factor ( list1 [ ,var ] ) ⇒ list factor ( matrix1 [ ,var ] ) ⇒ matrix factor( expression[...]

448 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 448 of 132 factor( rationalNumber ) returns the rational number factored into primes. For composite numbers, the computing time grows exponentially with the number of digits in th[...]

Appendix A: Functions and Instructions 449 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 449 of 132 Use the “|” operator to restrict the solution interval and/or specify the sign of other undefined variables. For the APPROX setting of the Exact/Approx mode, fMax()[...]

450 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 450 of 132 FnOn [1] [, 2] ... [,99] Selects the specified Y= functions for the current graphing mode. Note: In 3D graphing mode, only one function at a time can be selected. FnOn [...]

Appendix A: Functions and Instructions 451 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 451 of 132 fpart( ) MATH/Number menu fpart( expression1 ) ⇒ expression fpart( list1 ) ⇒ list fpart( matrix1 ) ⇒ matrix Returns the fractional part of the argument. For a lis[...]

452 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 452 of 132 GetCalc CATALOG GetCalc var Retrieves a value from the link port and stores it in variable var . This is for unit-to-unit linking. Note: To get a variable to the link p[...]

Appendix A: Functions and Instructions 453 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 453 of 132 getFold( ) CATALOG getFold() ⇒ nameString Returns the name of the current folder as a string. getFold() ¸ "main" getFold() ! oldfoldr ¸ "main" o[...]

454 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 454 of 132 getType( ) CATALOG getType( var ) ⇒ string Returns a string indicating the data type of variable var . If var has not been defined, returns the string " NONE &qu[...]

Appendix A: Functions and Instructions 455 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 455 of 132 Goto CATALOG Goto labelName Transfers program control to the label labelName . labelName must be defined in the same program using a Lbl instruction. Program segment: ?[...]

456 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 456 of 132 4 Hex MATH/Base menu integer1 4 Hex ⇒ integer Converts integer1 to a hexadecimal number. Binary or hexadecimal numbers always have a 0b or 0h prefix, respectively. 25[...]

Appendix A: Functions and Instructions 457 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 457 of 132 If Boolean expression1 Then block1 ElseIf Boolean expression2 Then block2 © ElseIf Boolean expressionN Then blockN EndIf Allows for program branching. If Boolean expre[...]

458 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 458 of 132 InputStr CATALOG InputStr [ promptString , ] var Pauses the program, displays promptString on the Program I/O screen, waits for you to enter a response, and stores your[...]

Appendix A: Functions and Instructions 459 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 459 of 132 iPart( ) MATH/Number menu iPart ( number ) ⇒ integer iPart ( list1 ) ⇒ list iPart ( matrix1 ) ⇒ matrix Returns the integer part of the argument. For lists and mat[...]

460 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 460 of 132 lcm( ) MATH/Number menu lcm ( number1 , number2 ) ⇒ expression lcm( list1 , list2 ) ⇒ list lcm( matrix1 , matrix2 ) ⇒ matrix Returns the least common multiple of [...]

Appendix A: Functions and Instructions 461 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 461 of 132 limit() uses methods such as L’Hopital’s rule, so there are unique limits that it cannot determine. If expression1 contains undefined variables other than var , you[...]

462 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 462 of 132 LineTan CATALOG LineTan expression1 , expression2 Displays the Graph screen and draws a line tangent to expression1 at the point specified. expression1 is an expression[...]

Appendix A: Functions and Instructions 463 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 463 of 132 list 4 mat() MATH/List menu list 4 mat( list [ , elementsPerRow ] ) ⇒ matrix Returns a matrix filled row-by-row with the elements from list . elementsPerRow , if incl[...]

464 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 464 of 132 LnReg MATH/Statistics/Regressions menu LnReg list1 , list2 [ , [ list3 ] [ , list4 , list5 ] ] Calculates the logarithmic regression and updates all the system statisti[...]

Appendix A: Functions and Instructions 465 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 465 of 132 log( ) CATALOG log ( expression1 ) ⇒ expression log ( list1 ) ⇒ list Returns the base-10 logarithm of the argument. For a list, returns the base-10 logs of the elem[...]

466 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 466 of 132 Loop CATALOG Loop block EndLoop Repeatedly executes the statements in block . Note that the loop will be executed endlessly, unless a Goto or Exit instruction is execut[...]

Appendix A: Functions and Instructions 467 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 467 of 132 mat 4 list( ) MATH/List menu mat 4 list ( matrix ) ⇒ list Returns a list filled with the elements in matrix . The elements are copied from matrix row by row. mat 4 li[...]

468 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 468 of 132 MedMed MATH/Statistics/Regressions menu MedMed list1 , list2 [ , [ list3 ] [ , list4 , list5 ] ] Calculates the median-median line and updates all the system statistics[...]

Appendix A: Functions and Instructions 469 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 469 of 132 min( ) MATH/List menu min( expression1 , expression2 ) ⇒ expression min( list1, list2 ) ⇒ list min( matrix1, matrix2 ) ⇒ matrix Returns the minimum of the two arg[...]

470 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 470 of 132 mRowAdd() MATH/Matrix/Row ops menu mRowAdd ( expression , matrix1 , index1 , index2 ) ⇒ matrix Returns a copy of matrix1 with each element in row index2 of matrix1 re[...]

Appendix A: Functions and Instructions 471 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 471 of 132 NewData CATALOG NewData dataVar , list1 [ , list2 ] [ , list3 ] ... Creates data variable dataVar, where the columns are the lists in order. Must have at least one list[...]

472 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 472 of 132 NewPlot CATALOG NewPlot n , type , xList [ , [ yList ], [ frqList ], [ catList ], [ includeCatList ], [ mark ] [ , bucketSize ]] Creates a new plot defi nition for pl o[...]

Appendix A: Functions and Instructions 473 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 473 of 132 The goal is six significant digits. The adaptive algorithm terminates when it seems likely that the goal has been achieved, or when it seems unlikely that additional sa[...]

474 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 474 of 132 nPr( ) MATH/Probability menu nPr ( expression1 , expression2 ) ⇒ expression For integer expression1 and expression2 with expression1 ‚ expression2 ‚ 0, nPr() is t[...]

Appendix A: Functions and Instructions 475 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 475 of 132 OneVar MATH/Statistics menu OneVar list1 [ [, list2 ] [, list3 ] [ , list4 ] ] Calculates 1-variable statistics and updates all the system statistics variables. All the[...]

476 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 476 of 132 ord( ) MATH/String menu ord ( string ) ⇒ integer ord ( list1 ) ⇒ list Returns the numeric code of the first character in character string string , or a list of the [...]

Appendix A: Functions and Instructions 477 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 477 of 132 part() CATALOG part( expression1 [ , nonNegativeInteger ] ) This advanced programming function lets you identify and extract all of the sub- expressions in the simplifi[...]

478 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 478 of 132 By combining the variations of part() , you can extract all of the sub-expressions in the simplified result of expression1 . As shown in the example to the right, you c[...]

Appendix A: Functions and Instructions 479 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 479 of 132 The example Program Editor function to the right uses getType() and part() to partially implement symbolic differentiation. Studying and completing this function can he[...]

480 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 480 of 132 PlotsOff CATALOG PlotsOff [ 1 ] [ , 2 ] [ , 3 ] ... [ , 9 ] Turns off the specified plots for graphing. When in 2-graph mode, only affects the active graph. If no param[...]

Appendix A: Functions and Instructions 481 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 481 of 132 PopUp CATALOG PopUp itemList , var Displays a pop-up menu containing the character strings from itemList , waits for you to select an item, and stores the number of you[...]

482 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 482 of 132 product( ) MATH/List menu product ( list [ , start [ , end ]]) ⇒ expression Returns the product of the elements contained in list . Start and end are optional. They s[...]

Appendix A: Functions and Instructions 483 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 483 of 132 PtOff CATALOG PtOff x , y PtOff xList , yList Displays the Graph screen and turns off the screen pixel nearest to window coordinates ( x , y ). PtOff 2,4 ¸ PtOn CATALO[...]

484 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 484 of 132 PxlHorz CATALOG PxlHorz row [ , drawMode ] Displays the Graph screen and draws a horizontal line at pixel position row . If drawMode = 1, draws the line (default). If d[...]

Appendix A: Functions and Instructions 485 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 485 of 132 PxlText CATALOG PxlText string , row , col Displays the Graph screen and places character string string on the screen, starting at pixel coordinates ( row , col ). stri[...]

486 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 486 of 132 The QR factorization is computed numerically using Householder transformations. The symbolic solution is computed using Gram-Schmidt. The columns in qMatName are the or[...]

Appendix A: Functions and Instructions 487 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 487 of 132 QuartReg MATH/Statistics/Regressions menu QuartReg list1 , list2 [ , [ list3 ] [ , list4 , list5 ] ] Calculates the quartic polynomial regression and updates the system[...]

488 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 488 of 132 rand( ) MATH/Probability menu rand ([ n ]) ⇒ expression n is an integer ƒ zero. With no parameter, returns the next random number between 0 and 1 in the sequence. Wh[...]

Appendix A: Functions and Instructions 489 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 489 of 132 RclPic CATALOG RclPic picVar [ , row , column ] Displays the Graph screen and adds the picture stored in picVar at the upper left-hand corner pixel coordinates ( row , [...]

490 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 490 of 132 ref( ) MATH/Matrix menu ref( matrix1 [ , tol ] ) ⇒ matrix Returns the row echelon form of matrix1 . Optionally, any matrix element is treated as zero if its absolute [...]

Appendix A: Functions and Instructions 491 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 491 of 132 Return CATALOG Return [ expression ] Returns expression as the result of the function. Use within a Func ... EndFunc block, or Prgm ... EndPrgm block. Note : Use Return[...]

492 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 492 of 132 rotate( list1 [ , #ofRotations ] ) ⇒ list Returns a copy of list1 rotated right or left by #of Rotations elements. Does not alter list1 . If #of Rotations is positive[...]

Appendix A: Functions and Instructions 493 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 493 of 132 rowNorm () MATH/Matrix/Norms menu rowNorm( matrix ) ⇒ expression Returns the maximum of the sums of the absolute values of the elements in the rows in matrix . Note: [...]

494 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 494 of 132 Send CATALOG Send list CBL 2 é /CBL é (Calculator-Based Laboratory é ) or CBR é (Calculator-Based Ranger é ) instruction. Sends list to the link port. Program segm[...]

Appendix A: Functions and Instructions 495 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 495 of 132 setFold( ) CATALOG setFold( newfolderName ) ⇒ oldfolderString Returns the name of the current folder as a string and sets newfolderName as the current folder. The fol[...]

496 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 496 of 132 setMode() CATALOG setMode( modeNameString , settingString ) ⇒ string setMode( list ) ⇒ stringList Sets mode modeNameString to the new setting settingString , and re[...]

Appendix A: Functions and Instructions 497 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 497 of 132 setTable( ) CATALOG setTable ( modeNameString , settingString ) ⇒ string Sets the table parameter modeNameString to settingString , and returns the previous setting o[...]

498 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 498 of 132 Shade CATALOG Shade expr1 , expr2 , [ xlow ] , [ xhigh ] , [ pattern ] , [ patRes ] Displays the Graph screen, graphs expr1 and expr2 , and shades areas in which expr1 [...]

Appendix A: Functions and Instructions 499 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 499 of 132 shift( ) CATALOG shift( integer1 [ , #ofShifts ] ) ⇒ integer Shifts the bits in a binary integer. You can enter integer1 in any number base; it is converted automatic[...]

500 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 500 of 132 ShowStat CATALOG ShowStat Displays a dialog box containing the last computed statistics results if they are still valid. Statistics results are cleared automatically if[...]

Appendix A: Functions and Instructions 501 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 501 of 132 simult ( coeffMatrix , constMatrix [ , tol ] ) ⇒ matrix Solves multiple systems of linear equations, where each system has the same equation coefficients but differen[...]

502 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 502 of 132 sin ê ( squareMatrix1 ) ⇒ squareMatrix Returns the matrix inverse sine of squareMatrix1 . This is not the same as calculating the inverse sine of each element. For i[...]

Appendix A: Functions and Instructions 503 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 503 of 132 SinReg MATH/Statistics/Regressions menu SinReg list1 , list2 [ , [ iterations ] , [ period ] [ , list3 , list4 ] ] Calculates the sinusoidal regression and updates all [...]

504 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 504 of 132 For the EXACT setting of the Exact/Approx mode, portions that cannot be solved are returned as an implicit equation or inequality. exact(solve((x ì a) e ^(x)= ë x ù [...]

Appendix A: Functions and Instructions 505 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 505 of 132 If all of the equations are polynomials and if you do NOT specify any initial guesses , solve() uses the lexical Gröbner/Buchberger elimination method to attempt to de[...]

506 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 506 of 132 Each solution variable starts at its guessed value if there is one; otherwise, it starts at 0.0. Use guesses to seek additional solutions one by one. For convergence, a[...]

Appendix A: Functions and Instructions 507 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 507 of 132 stdDev( matrix1 [ , freqmatrix ] ) ⇒ matrix Returns a row vector of the standard deviations of the columns in matrix1 . Each freqmatrix element counts the number of c[...]

508 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 508 of 132 string( ) MATH/String menu string ( expression ) ⇒ string Simplifies expression and returns the result as a character string. string(1.2345) ¸ "1.2345" str[...]

Appendix A: Functions and Instructions 509 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 509 of 132 sum( matrix1 [ , start [ , end ]]) ⇒ matrix Returns a row vector containing the sums of the elements in the columns in matrix1 . Start and end are optional. They spec[...]

510 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 510 of 132 Table CATALOG Table expression1 [ , expression2 ] [ , var1 ] Builds a table of the specified expressions or functions. The expressions in the table can also be graphed.[...]

Appendix A: Functions and Instructions 511 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 511 of 132 tan ê () TI - 89: ¥ S key TI - 92 Plus: 2 S key tan ê ( expression1 ) ⇒ expression tan ê ( list1 ) ⇒ list tan ê ( expression1 ) returns the angle whose tangent[...]

512 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 512 of 132 tanh ê ( squareMatrix1 ) ⇒ squareMatrix Returns the matrix inverse hyperbolic tangent of squareMatrix1 . This is not the same as calculating the inverse hyperbolic t[...]

Appendix A: Functions and Instructions 513 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 513 of 132 tExpand() MATHAlgebraTrig menu tExpand( expression1 ) ⇒ expression Returns an expression in which sines and cosines of integer-multiple angles, angle sums, and angl[...]

514 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 514 of 132 tmpCnv() CATALOG tmpCnv( expression1_ ¡ tempUnit1 , _ ¡ tempUnit2 ) ⇒ expression _ ¡ tempUnit2 Converts a temperature value specified by expression1 from one unit [...]

Appendix A: Functions and Instructions 515 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 515 of 132 Toolbar CATALOG Toolbar block EndTBar Creates a toolbar menu. block can be either a single statement or a sequence of statements separated with the “:” character. T[...]

516 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 516 of 132 TwoVar MATH/Statistics menu TwoVar list1 , list2 [ , [ list3 ] [ , list4 , list5 ] ] Calculates the TwoVar statistics and updates all the system statistics variables. A[...]

Appendix A: Functions and Instructions 517 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 517 of 132 variance( ) MATH/Statistics menu variance ( list [ , freqlist ] ) ⇒ expression Returns the variance of list . Each freqlist element counts the number of consecutive o[...]

518 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 518 of 132 Nest when() to define expressions that have more than two pieces. TI-89: " TI-92 Plus: ¥" ClrGraph ¸ Done Graph when(x<0,when(x< ë p , 4 ù sin(x),2x[...]

Appendix A: Functions and Instructions 519 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 519 of 132 integer1 xor integer2 ⇒ integer Compares two real integers bit-by-bit using an xor operation. Internally, both integers are converted to signed, 32-bit binary numbers[...]

520 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 520 of 132 zeros({ expression1 , expression2 }, { varOrGuess1 , varOrGuess2 [ , … ] }) ⇒ matrix Returns candidate real zeros of the simultaneous algebraic expressions , where [...]

Appendix A: Functions and Instructions 521 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 521 of 132 For polynomial systems, computation time or memory exhaustion may depend strongly on the order in which you list unknowns. If your initial choice exhausts memory or you[...]

522 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 522 of 132 ZoomData CATALOG ZoomData Adjusts the window settings based on the currently defined plots (and data) so that all statistical data points will be sampled, and displays [...]

Appendix A: Functions and Instructions 523 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 523 of 132 ZoomFit CATALOG ZoomFit Displays the Graph screen, and calculates the necessary window dimensions for the dependent variables to view all the picture for the current in[...]

524 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 524 of 132 ZoomOut CATALOG ZoomOut Displays the Graph screen, lets you set a center point for a zoom out, and updates the viewing window. The magnitude of the zoom is dependent on[...]

Appendix A: Functions and Instructions 525 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 525 of 132 ZoomStd CATALOG ZoomStd Sets the window variables to the following standard values, and then updates the viewing window. Function graphing: x: [ ë 10, 10, 1], y: [ ë [...]

526 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 526 of 132 + (add) « key expression1 + expression2 ⇒ expression Returns the sum of expression1 and expression2 . 56 ¸ 56 ans (1) +4 ¸ 60 ans (1) +4 ¸ 64 ans (1) +4 ¸ 68 ans[...]

Appendix A: Functions and Instructions 527 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 527 of 132 expression - matrix1 ⇒ matrix matrix1 - expression ⇒ matrix expression ì matrix1 returns a matrix of expression times the identity matrix minus matrix1 . matrix1 m[...]

528 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 528 of 132 expression à list1 ⇒ list list1 à expression ⇒ list Returns a list containing the quotients of expression divided by list1 or list1 divided by expression. a/{3,a,[...]

Appendix A: Functions and Instructions 529 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 529 of 132 = (equal) Á key expression1 = expression2 ⇒ Boolean expression list1 = list2 ⇒ Boolean list matrix1 = matrix2 ⇒ Boolean matrix Returns true if expression1 is det[...]

530 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 530 of 132 ≤ ¹µ key expression1 ≤ expression2 ⇒ Boolean expression list1 ≤ list2 ⇒ Boolean list matrix1 ≤ matrix2 ⇒ Boolean matrix Returns true if expression1 is d[...]

Appendix A: Functions and Instructions 531 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 531 of 132 . . (dot subt.) ¶| keys matrix1 . ì matrix2 ⇒ matrix expression . ì matrix1 ⇒ matrix matrix1 . ì matrix2 returns a matrix that is the difference between each pa[...]

532 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 532 of 132 & (append) TI - 89: ¥ p key TI - 92 Plus: 2 H key string1 & string2 ⇒ string Returns a text string that is string2 appended to string1 . "Hello " &[...]

Appendix A: Functions and Instructions 533 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 533 of 132 ‰ () can be nested to do multiple integrals. Integration limits can depend on integration variables outside them. Note: See also nInt() . ‰ ( ‰ (ln(x+y),y,0,x),x,[...]

534 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 534 of 132 ^ (power) Z key expression1 ^ expression2 ⇒ expression list1 ^ list2 ⇒ list Returns the first argument raised to the power of the second argument. For a list, retur[...]

Appendix A: Functions and Instructions 535 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 535 of 132 ô (radian) MATH/Angle menu expression1 ô ⇒ expression list1 ô ⇒ list matrix1 ô ⇒ matrix In Degree angle mode, multiplies expression1 by 180/ p . In Radian ang[...]

536 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 536 of 132 ¡ , ', " 2“ key ( ¡ ), 2È key ('), 2É key (") dd ¡ mm ' ss.ss " ⇒ expression dd A positive or negative number mm A non-negative n[...]

Appendix A: Functions and Instructions 537 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 537 of 132 4 (convert) 2 key expression_unit1 4 _ unit2 ⇒ expression_unit2 Converts an expression from one unit to another. The units must be in the same category. The _ unde[...]

538 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 538 of 132 x ê CATALOG (^ -1 ) expression1 x ê ⇒ expression list1 x ê ⇒ list Returns the reciprocal of the argument. For a list, returns the reciprocals of the elements in [...]

Appendix A: Functions and Instructions 539 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 539 of 132 ! (store) § key expression ! var list ! var matrix ! var expression ! fun_name(parameter1,...) list ! fun_name(parameter1,...) matrix ! fun_name(parameter1,...) If var[...]

540 Appendix A: Functions and Instructions 8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 540 of 132[...]

Appendix B: Reference Information 541 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 541 of 34 Appendix B: Refer ence Infor mation TI - 89 / TI - 92 Plus Error Messages ....................................................... 542 Modes ................................[...]

542 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 542 of 34 Error Number Description 10 A function did not return a value 20 A test did not resolve to TRUE or FALSE Generally, undefined variables cannot be compared. For example, the[...]

Appendix B: Reference Information 543 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 543 of 34 Error Number Description 160 Argument must be an expression For example, zeros(2x+3=0,x) is invalid because the first argument is an equation. 161 ASAP or Exec string too l[...]

544 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 544 of 34 Error Number Description 260 Domain error An argument must be in a specified domain. For example, ans(100) is not valid because the argument for ans() must be in the range [...]

Appendix B: Reference Information 545 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 545 of 34 Error Number Description 405 Invalid axes 410 Invalid command 420 Invalid folder name 430 Invalid for the current mode settings 440 Invalid implied multiply For example, x([...]

546 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 546 of 34 Error Number Description 560 Invalid outside Loop..EndLoop, For..EndFor, or While..EndWhile blocks For example, the Exit command is valid only inside these loop blocks. 570[...]

Appendix B: Reference Information 547 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 547 of 34 Error Number Description 690 Missing ) 700 Missing " 710 Missing ] 720 Missing } 730 Missing start or end of block syntax 740 Missing Then in the If..EndIf block 750 N[...]

548 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 548 of 34 Error Number Description 850 Program not found A program reference inside another program could not be found in the provided path during execution. 860 Recursion is limited[...]

Appendix B: Reference Information 549 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 549 of 34 Error Number Description Warning: ˆ ^0 or undef^0 replaced by 1 Warning: 0^0 replaced by 1 Warning: 1^ ˆ or 1^undef replaced by 1 Warning: cSolve may specify more zeros W[...]

550 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 550 of 34 Specifies the type of graphs you can plot. 1:FUNCTION y(x) functions (Chapter 6) 2:PARAMETRIC x(t) and y(t) parametric equations (Chapter 7) 3:POLAR r( q ) polar equations [...]

Appendix B: Reference Information 551 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 551 of 34 Specifies the units in which angle values are interpreted and displayed in trig functions and polar/rectangular conversions. 1:RADIAN 2:DEGREE Specifies which notation form[...]

552 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 552 of 34 Determines how 2-element and 3-element vectors are displayed. You can enter vectors in any of the coordinate systems. 1:RECTANGULAR Coordinates are in terms of x , y , and [...]

Appendix B: Reference Information 553 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 553 of 34 Specifies which application is displayed on the screen. ¦ For a full screen, only Split 1 App is active. ¦ For a split screen, Split 1 App is the top or left part of the [...]

554 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 554 of 34 Lets you perform calculations by entering numbers in decimal, binary, or hexadecimal form. 1:DEC Decimal numbers use 0 - 9 in the base 10 format 2:HEX Hexadecimal numbers u[...]

Appendix B: Reference Information 555 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 555 of 34 1. SOH 2. STX 3. ETX 4. EOT 5. ENQ 6. ACK 7. BELL 8. BS 9. TAB 10. LF 11. ÷ 12. FF 13. CR 14. 15. Ÿ 16. é 17. 7 18. 8 19. 9 20. : 21. ← 22. → 23. ↑ 24. ↓ 25. 3 2[...]

556 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 556 of 34 Table 1: Key Codes for Primary Keys Key Modifier None ¤2¥ j Assoc. Value Assoc. Value Assoc. Value Assoc. Value Assoc. Value ƒ F1 268 F1 268 F6 273 Y= 8460 F1 268 „ F2[...]

Appendix B: Reference Information 557 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 557 of 34 Table 1: Key Codes for Primary Keys (Continued) Key Modifier None ¤2¥ j Assoc. Value Assoc. Value Assoc. Value Assoc. Value Assoc. Value ¸ CR 13 CR 13 ENTRY 4109 APPROX [...]

558 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 558 of 34 Table 3: Greek Letters (prefixed by ¥ c ) Keys Second modifier j ¤ Assoc. Value Assoc. Value Á [A] α 128 c [B] β 129 b [D] δ 133 ∆ 132 e [E] ε 134 Í [F] φ 145 m [...]

Appendix B: Reference Information 559 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 559 of 34 Table 1: Key Codes for Primary Keys Key Modifier None ¤2¥ Assoc. Value Assoc. Value Assoc. Value Assoc. Value ƒ F1 268 F1 268 F1 268 8460 „ F2 269 F2 269 F2 269 8461 ?[...]

560 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 560 of 34 Table 1: Key Codes for Primary Keys (Continued) Key Modifier None ¤2¥ Assoc. Value Assoc. Value Assoc. Value Assoc. Value µ 0 48 0 48 < 60 8240 ¨ 1 49 1 49 E 149 824[...]

Appendix B: Reference Information 561 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 561 of 34 Table 2: Arrow Keys Arrow Key s Normal ¤2¥ ‚ C 338 16722 4434 8530 33106 E 342 16726 4438 8534 33110 B 340 16724 4436 8532 33108 F 348 16732 4444 8540 33116 D 344 16728[...]

562 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 562 of 34 Table 6: Greek Letters (prefixed by 2 G) Key Assoc. Normal ¤ A α 128 B β 129 D δ 133 132 E ε 134 F φ 145 G γ 131 130 L λ 137 M µ 181 P π 140 139 R ρ 141 S σ 143[...]

Appendix B: Reference Information 563 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 563 of 34 A complex number has real and imaginary components that identify a point in the complex plane. These components are measured along the real and imaginary axes, which are si[...]

564 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 564 of 34 To enter the: Do this: Polar form r e i q – or – (r q ) Substitute the applicable values or variable names for r and q , where q is interpreted according to the Angl[...]

Appendix B: Reference Information 565 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 565 of 34 Regardless of the Complex Format mode setting, undefined variables are treated as real numbers. To perform complex symbolic analysis, you can use either of the following me[...]

566 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 566 of 34 Floating-point (decimal) values in memory are stored using up to 14 digits with a 3-digit exponent. ¦ For min and max Window variables ( xmin , xmax , ymin , ymax , etc.),[...]

Appendix B: Reference Information 567 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 567 of 34 y1(x)–y99(x)* y1'(t)–y99'(t)* yi1–yi99* r1( q )–r99( q )* xt1(t)–xt99(t)* yt1(t)– yt99(t)* z1(x,y)–z99(x,y)* u1(n)–u99(n)* ui1–ui99* xc yc zc tc[...]

568 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 568 of 34 Level Operator 1 Parentheses ( ), brackets [ ], braces { } 2 Indirection (#) 3 Function calls 4 Post operators: degrees-minutes-seconds ( ó ,',"), factorial (!),[...]

Appendix B: Reference Information 569 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 569 of 34 The indirection operator (#) converts a string to a variable or function name. For example, #(“x”&”y”&”z”) creates the variable name xyz . Indirection a[...]

570 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 570 of 34 Most of the regressions use non-linear recursive least-squares techniques to optimize the following cost function, which is the sum of the squares of the residual errors: [[...]

Appendix B: Reference Information 571 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 571 of 34 Regression Description LnReg Uses the least-squares algorithm and transformed values ln( x ) and y to fit the model equation: y = a + b ln( x ) Logistic Uses the least-squa[...]

572 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 572 of 34 Based on your x and y Window variables, the distance between xmin and xmax and between ymin and ymax is divided into a number of grid lines specified by xgrid and ygrid . T[...]

Appendix B: Reference Information 573 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 573 of 34 The Bogacki-Shampine 3(2) formula provides a result of 3rd-order accuracy and an error estimate based on an embedded 2nd-order formula. For a problem of the form: y ' [...]

574 Appendix B: Reference Information 8992APPB DOC TI - 89/TI - 92 Plus:8992a pp b doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 574 of 34[...]

Appendix C: Service and Warranty Information 575 8992APPC.DOC TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:3 0 PM Page 575 of 8 Appendix C: Ser vice and W arranty Infor mation Battery Information ............................................................................... 576 In Case of [...]

576 Appendix C: Service and Warranty Information 8992APPC DOC TI - 8 9/T I - 92 Plus: A pp endix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:30 PM Page 576 of 8 8992APPC.DOC TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:3 0 PM Page 576 of 8 As the alkaline batt[...]

Appendix C: Service and Warranty Information 577 8992APPC.DOC TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:3 0 PM Page 577 of 8 1. If the TI - 89 is on, turn it off (press 2 ® ) to avoid loss of information stored in memory. 2. Slide the protective cover over the keyboard. 3. Holding the c[...]

578 Appendix C: Service and Warranty Information 8992APPC DOC TI - 8 9/T I - 92 Plus: A pp endix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:30 PM Page 578 of 8 8992APPC.DOC TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:3 0 PM Page 578 of 8 1. If the TI - 92 Pl[...]

Appendix C: Service and Warranty Information 579 8992APPC.DOC TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:3 0 PM Page 579 of 8 If: Suggested action: You cannot see anything on the display. Press ¥« to darken or ¥| to lighten the display contrast. The BATT indicator is displayed. Replace[...]

580 Appendix C: Service and Warranty Information 8992a pp c doc TI - 8 9/T I - 92 Plus: A pp endix C (US English) Susan Gullord Revised: 01/19/02 9:40 AM Printed: 01/19/02 9:41 AM Page 580 of 8 8992appc.doc TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 01/19/02 9:40 AM Printed: 01/19/02 9:4 1 AM Page 580 of 8 E-mail: ti-cares@t[...]

Appendix C: Service and Warranty Information 581 8992APPC.DOC TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:3 0 PM Page 581 of 8 One-Year Limited Warranty for Commercial Electronic Product This Texas Instruments (“TI”) electronic product warranty extends only to the original purchaser an[...]

582 Appendix C: Service and Warranty Information 8992APPC DOC TI - 8 9/T I - 92 Plus: A pp endix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:30 PM Page 582 of 8 8992APPC.DOC TI-89 / TI-92 Plus: Appendix C (US English) Susan Gullord Revised: 02/23/01 1:56 PM Printed: 02/23/01 4:3 0 PM Page 582 of 8 One-Year Limited War[...]

Appendix D: Programmer’s Guide 583 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 583 of 8 Appendix D: Pr ogrammer’ s Guide setMode( ) and getMode( ) ................................................................... 584 setGraph( ) ................................................................[...]

584 Appendix D: Programmer’s Guide 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 584 of 8 Parameter/Mode Setting Strings ALL 0 Graph 1 FUNCTION 1 PARAMETRIC 2 POLAR 3 SEQUENCE 4 3D 5 DIFF EQUATIONS 6 DisplayDigits 2 FIX 0 1 FIX 1 2 FIX 2 3 FIX 3 4 FIX 4 5 FIX 5 6 FIX 6 7 FIX 7 8 FIX 8 9 FIX 9 10 FI[...]

Appendix D: Programmer’s Guide 585 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 585 of 8 Parameter/Mode Setting Strings FLOAT 10 24 FLOAT 11 25 FLOAT 12 26 Angle 3 RADIAN 1 DEGREE 2 Exponential Format 4 NORMAL 1 SCIENTIFIC 2 ENGINEERING 3 Complex Format 5 REAL 1 RECTANGULAR 2 POLAR 3 V ector Forma[...]

586 Appendix D: Programmer’s Guide 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 586 of 8 Parameter/Mode Setting Strings Graph 2 12 FUNCTION 1 PARAMETRIC 2 POLAR 3 SEQUENCE 4 3D 5 DIFF_EQUATIONS 6 Split Screen Ratio 13 1:1 1 1:2 2 2:1 3 Exact/Approx 14 AUTO 1 EXACT 2 APPROXIMATE 3 Base 15 DEC 1 HEX[...]

Appendix D: Programmer’s Guide 587 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 587 of 8 Parameter/Mode Setting Strings Coordinates 1 RECT 1 POLAR 2 OFF 3 Graph Order 2 SEQ 1 SIMUL 2 Grid 3 OFF 1 ON 2 A xes 4 In 3D Mode: OFF 1 AXES 2 BOX 3 Not in 3D Mode: OFF 1 ON 2 Leading Cursor 5 OFF 1 ON 2 Lab[...]

588 Appendix D: Programmer’s Guide 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 588 of 8 Parameter/Mode Setting Strings Fields 9 SLPFLD 1 DIRFLD 2 FLDOFF 3 DE Axes 10 TIME 1 Y1-VS-Y2 2 T-VS-Y' 3 Y-VS-Y' 4 Y1-VS-Y2' 5 Y1'-VS-Y2' 6 X R Style 11 WIRE FRAME 1 HIDDEN SRUFACE 2 [...]

Appendix D: Programmer’s Guide 589 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 589 of 8 Parameter/Mode Setting Strings Graph <->Table 1 OFF 1 ON 2 Independent 2 AUTO 1 ASK 2 A xes 4 setTable( )[...]

590 Appendix D: Programmer’s Guide 8992APPD.DOC Appendix D Susan Gullord Revised: 02/23/01 1:57 PM Printed: 02/23/01 2:25 PM Page 590 of 8[...]

Index 591 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 591 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 591 of 16 Symbols í , exponent, 441 4 Bin , display as binary, 345 , 417 4 Cylind , display as cylindrical ve[...]

592 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 592 of 16 A (continued) angle( ) , angle, 415 angle, ± , 535 angle, angle( ) , 415 ans( ) , last answer, 50 , 416 APD (Automatic Power Down), 14 append, & , 293 , 532 . inside front cover , inside back cover APPLICATIONS menu[...]

Index 593 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 593 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 593 of 16 C (continued) colDim( ) , matrix column dimension, 421 colNorm( ) , matrix column norm, 421 combinat[...]

594 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 594 of 16 D (continued) derivatives, 10 first derivative, d ( ) , 10 , 66 , 75 , 76 , 432 numeric derivative, nDeriv( ) , 75 , 470 Derivatives (graph math tool), 122 , 124 , 132 , 138 deSolve( ) , solution, 75 , 196 , 434 det( ) ,[...]

Index 595 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 595 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 595 of 16 E (continued) entry( ) , entry, 50 , 443 EOS (Equation Operating System), 568 equal, = , 294 , 529 E[...]

596 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 596 of 16 F (continued) field off, FLDOFF , 180 , 185 , 199 field picture, fldpic , 183 Fill , matrix fill, 448 Flash applications, 4 , 38 , 45 , 79, 353, 356. inside front cover , inside back cover deleting, 369 Flash, upgrading [...]

Index 597 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 597 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 597 of 16 G (continued) matrix data, 203 Maximum , 122 , 123 Minimum , 11 , 122 , 123 modes, 41 , 54 , 108 , 1[...]

598 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 598 of 16 K keyboard, 16 , 17 j (alpha) key, 18 ¥ (diamond) key, 18 ‚ (hand) key, 18 2 (second) key, 18 ¤ (shift) key, 18 key codes, 301 , 556 – 562 map, 324 , 325 , inside front cover , inside back cover shortcuts, 325 , in[...]

Index 599 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 599 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 599 of 16 M (continued) dimension, dim( ) , 437 dot addition, .+ , 530 dot division, . à , 531 dot multiplica[...]

600 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 600 of 16 N natural log base, e , 80 natural logarithm, ln( ) , 463 ncontour window variable, 158 nCr( ) , combinations, 470 ncurves window variable, 182 nDeriv( ) , numeric derivative, 75 , 470 negate, M , 25 , 528 new data, NewD[...]

Index 601 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 601 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 601 of 16 P (continued) point change, PtChg , 307 , 482 off, PtOff , 307 , 483 on, PtOn , 307 , 483 test, ptTe[...]

602 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 602 of 16 P (continued) return, Return , 286 , 287 , 491 running, 278 . inside front cover , inside back cover stop, Stop , 282 , 507 stopping, 278 subroutines, 287 tables, 305 text, Text , 302 , 513 Then, Then , 295 , 296 , 456 t[...]

Index 603 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 603 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 603 of 16 S (continued) seq( ) , sequence, 494 sequence graphing, 139 – 151 serial number, 55 service inform[...]

604 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 604 of 16 S (continued) shift, shift( ) , 293 , 499 string to expression, expr( ) , 292 , 293 , 301 , 381 , 446 within, InString , 293 , 458 Style , style, 112 , 305 , 508 subMat( ) , submatrix, 508 submenus, 35 substitutions, 67 [...]

Index 605 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 605 of 16 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 605 of 16 U (continued) Unlock , unlock, 289 , 516 upgrading product code, 373 , 374 user-defined functions, 4[...]

606 Index 8992INDX.DOC TI-89: Index (US English) Susan Gullord Revised: 02/26/01 3:52 PM Printed: 02/26/01 3:55 PM Page 606 of 16 X xgrid window variable, 158 xmax window variable, 113 , 131 , 137 , 143 , 144 , 158 , 182 , 566 xmin window variable, 113 , 131 , 137 , 143 , 144 , 158 , 182 , 566 xor , Boolean exclusive or, 294 , 347 , 518 XorPic , ex[...]