Casio FX9750GIIWELIH manual

BEFORE USING THE CALCULA TOR FOR THE FIRST TIME... This calculator does not contain any main batteries when you purchase it. Be sure to perform the following procedure to load batteries, reset the calculator, and adjust the contrast before trying to use the calculator for the first time. 1. Remove the back cover from the calculator by pressing it i[...]

ii 5. Press m . If the Main Menu shown to the right is not on the display , press the P button on the back of the calculator to perform memory reset. 6. Use the cursor keys ( f , c , d , e ) to select the CONT icon and press w or simply press s to display the contrast adjustment screen. 7. Use d and e to adjust contrast. • d makes figures on the [...]

KEYS Alpha Lock Normally , once you press a and then a key to input an alphabetic character , the keyboard reverts to its primary functions immediately . If you press ! and then a , the keyboard locks in alpha input until you press a again. iii[...]

KEY T ABLE Page Page Page Page Page Page 146 Page Page Page Page Page 151 129 57 56 25 7 5 6 174 164 136 333 4 2 3 13 33 56 56 56 56 55 55 55 55 24 23 46 46 46 46 49 46 55 46 57 46 59 59 57 46 55 55 25 iv[...]

Switching Power On And Off Auto Power Off Function Using Modes Basic Calculations Replay Features Fraction Calculations Exponents Graph Functions Dual Graph Box Zoom Dynamic Graph T able Function Quick-Start[...]

Quick-Start vi Welcome to the world of graphing calculators and the CASIO fx-9750G. Quick-Start is not a complete tutorial, but it takes you through many of the most common functions, from turning the power on to graphing complex equations. When you’re done, you’ll have mastered the basic operation of the fx-9750G and will be ready to proceed w[...]

Quick-Start vii 2. Use defc to highlight RUN and then press w . This is the initial screen of the RUN mode, where you can perform manual calculations, and run programs. BASIC CALCULA TIONS With manual calculations, you input formulas from left to right, just as they are written on paper . W ith formulas that include mixed arithmetic operators and p[...]

Quick-Start viii 1. Press o . 2. Press ! m SET UP to switch the set up display . 3. Press cccc 1 (Deg) to specify degrees as the angle unit. 4. Press J to clear the menu. 5. Press o to clear the unit. 6. Press cf* s ef w . REPLA Y FEA TURES With the replay feature, simply press d or e to recall the last calculation that was performed. This recalls [...]

Quick-Start ix FRACTION CALCULA TIONS Y ou can use the $ key to input fractions into calculations. The symbol “ { ” is used to separate the various parts of a fraction. Example: 1 15 / 16 + 37 / 9 1. Press o . 2. Press b $ bf $ bg+dh $ j w . Conver ting a Mixed Fraction to an Impr oper Fraction While a mixed fraction is shown on the display , p[...]

Quick-Start x EXPONENTS Example: 1250 × 2.06 5 1. Press o . 2. Press bcfa*c.ag . 3. Press M and the ^ indicator appears on the display . 4. Press f . The ^5 on the display indicates that 5 is an exponent. 5. Press w .[...]

Quick-Start xi GRAPH FUNCTIONS The graphing capabilities of this calculator makes it possible to draw complex graphs using either rectangular coordinates (horizontal axis: x ; vertical axis: y ) or polar coordinates (angle: θ ; distance from origin: r ). Example 1: T o graph Y = X(X + 1)(X – 2) 1. Press m . 2. Use d , e , f , and c to highlight [...]

Quick-Start xii 2. Press 1 (ROOT). Press e for other roots. Example 3: Determine the area bounded by the origin and the X = –1 root obtained for Y = X(X + 1)(X – 2) 1. Press !5 (G-Solv). 2. Press 6 ( g ). 3. Press 3 ( ∫ dx ). 4. Use e to move the pointer to the location where X = –1, and then press w . Next, use e again to move the pointer [...]

Quick-Start xiii DUAL GRAPH With this function you can split the display between two areas and display two graphs on the same screen. Example: T o draw the following two graphs and determine the points of intersection Y1 = X(X + 1)(X – 2) Y2 = X + 1.2 1. Press !Z cc 1 (Grph) to specify “Graph” for the Dual Screen setting. 2. Press J , and the[...]

Quick-Start xiv 3. Use d , e , f , and c to move the pointer again. As you do, a box appears on the display . Move the pointer so the box encloses the area you want to enlarge. 4. Press w , and the enlarged area appears in the in- active (right side) screen. DYNAMIC GRAPH Dynamic Graph lets you see how the shape of a graph is af fected as the value[...]

Quick-Start xv 4. Press 4 (V AR) b w to assign an initial value of 1 to coefficient A. 5. Press 2 (RANG) b w d w b w to specify the range and increment of change in coeffi- cient A. 6. Press J . 7. Press 6 (DYNA) to start Dynamic Graph drawing. The graphs are drawn 10 times. 1 2 3456 ↓↑ ↓↑ ↓[...]

Quick-Start xvi TABLE FUNCTION The T able Function makes it possible to generate a table of solutions as dif ferent values are assigned to the variables of a function. Example: T o create a number table for the following function Y = X (X +1) ( X – 2) 1. Press m . 2. Use d , e , f , and c to highlight T ABLE , and then press w . 3. Input the form[...]

• Y our calculator is made up of precision components. Never try to take it apart. • Avoid dropping your calculator and subjecting it to strong impact. • Do not store the calculator or leave it in areas exposed to high temperatures or humidity, or large amounts of dust. When exposed to low temperatures, the calculator may require more time to[...]

xviii Be sure to keep physical records of all important data! The large memory capacity of the unit makes it possible to store large amounts of data. Y ou should note, however, that low battery power or incorrect replacement of the batteries that power the unit can cause the data stored in memory to be corrupted or even lost entirely . Stored data [...]

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Contents xx Getting Acquainted — Read This First! ........................................ 1 1. Key Markings .......................................................................................... 2 2. Selecting Icons and Entering Modes ................................................... 3 Using the Set Up Screen ..............................[...]

xxi Contents Chapter 2 Manual Calculations .................................................. 45 2-1 Basic Calculations ......................................................................... 46 Arithmetic Calculations ................................................................................ 46 Number of Decimal Places, Number of Significa[...]

xxii Contents Σ Calculation Precautions ............................................................................ 78 Chapter 4 Complex Numbers ..................................................... 79 4-1 Before Beginning a Complex Number Calculation ..................... 80 4-2 Performing Complex Number Calculations ............................[...]

xxiii Contents Matrix T ransposition ................................................................................... 110 Matrix Inversion ......................................................................................... 110 Squaring a Matrix ...................................................................................... 111 Raisi[...]

xxiv Contents 8-6 Other Graphing Functions .......................................................... 146 Connect T ype and Plot T ype Graphs (Draw T ype) ..................................... 146 T race .......................................................................................................... 146 Scroll ............................[...]

xxv Contents Clearing Drawn Lines and Points .............................................................. 188 Chapter 11 Dual Graph ............................................................. 189 11-1 Before Using Dual Graph ............................................................ 190 About Dual Graph Screen T ypes .........................[...]

xxvi Contents Chapter 15 T able & Graph ......................................................... 235 15-1 Before Using T able & Graph ....................................................... 236 15-2 Storing a Function and Generating a Numeric T able ............... 237 V ariable Specifications ..............................................[...]

xxvii Contents Chapter 18 Statistical Graphs and Calculations .................... 283 18-1 Before Performing Statistical Calculations ............................... 284 18-2 Paired-V ariable Statistical Calculation Examples ..................... 285 Inputting Data into Lists ........................................................................[...]

xxviii Contents Chapter 19 Programming ......................................................... 313 19-1 Before Programming ................................................................... 314 19-2 Programming Examples .............................................................. 315 19-3 Debugging a Program ...................................[...]

xxix Contents 20-5 Performing a Data T ransfer Operation ....................................... 368 20-6 Screen Send Function ................................................................. 372 20-7 Data Communications Precautions ........................................... 373 Chapter 21 Program Library .........................................[...]

Getting Acquainted — Read This First! : Important notes : Notes : Reference pages The symbols in this manual indicate the following messages. Getting Acquainted — Read This First! P .000[...]

2 1. Key Markings Many of the calculator’ s keys are used to perform more than one function. The func- tions marked on the keyboard are color coded to help you find the one you need quickly and easily . Function Key Operation 1 log l 2 10 x !l 3 B al The following describes the color coding used for key markings. Color Key Operation Orange Press [...]

3 2. Selecting Icons and Entering Modes This section describes how to select an icon in the Main Menu to enter the mode you want. u T o select an icon 1. Press m to display the Main Menu. m 2. Use the cursor keys ( d , e , f , c ) to move the highlighting to the icon you want. 3. Press w to display the initial screen of the mode whose icon you sele[...]

4 Icon Meaning Use this mode to store functions, to generate a numeric table of different solutions as the values assigned to variables in a function change, and to draw graphs. Use this mode to store recursion formulas, to gen- erate a numeric table of different solutions as the values assigned to variables in a function change, and to draw graphs[...]

5 3. Use the f and c cursor keys to move the highlighting to the item whose setting you want to change. 4. Press the function key ( 1 to 6 ) that is marked with the setting you want to make. 5. After you are finished making any changes you want, press J to return to the initial screen of the mode. k Set Up Screen Function Key Menus This section det[...]

6 u Graph Draw T ype (Draw Type) 1 (Con) ........ Connection of points plot- ted on graph. 2 (Plot) ........ Plotting of points on graph without connection. u Derivative Display Mode (Derivative) 1 (On) .......... Turns on display of deriva- tive value when using Graph-to-T able, T able & Graph, and T race. 2 (Of f) .......... T urns off displa[...]

7 u Graph Axis Labels (Label) 1 (On) .......... T urns on display of graph screen axis labels. 2 (Of f) .......... T urns off display of graph screen axis labels. u Display Format (Display) 1 (Fix) .......... Displays screen for speci- fication of number of deci- mal places. 2 (Sci) ......... Displays screen for speci- fication of number of signifi[...]

8 u List File Specification (List File) 1 (File 1)~ 6 (File 6) .... List file number (1 to 6) specifi- cation. u Dual Screen Mode (Dual Screen) The Dual Screen Mode setting you can select dif fers depending upon whether you are using the GRAPH Mode set up screen or the T ABLE/RECUR Mode set up screen. GRAPH Mode 1 (Grph) ...... Divides screen into [...]

9 u T able & Graph Generation Settings (Variable) 1 (Rang) ...... T able generation and graph drawing using numeric ta- ble range. 2 (LIST) ....... T able generation and graph drawing using list data. u Σ Data Display Mode ( Σ Display) 1 (On) .......... T urns on display of Σ value on recursion numeric table. 2 (Of f) .......... T urns off d[...]

10 3. Display k About the Display Screen This calculator uses two types of display: a text display and a graphic display . The text display can show 21 columns and eight lines of characters, with the bottom line used for the function key menu, while the graph display uses an area that measures 127 (W) × 63 (H) dots. T ext Display Graph Display k A[...]

11 k Exponential Display The calculator normally displays values up to 10 digits long. V alues that exceed this limit are automatically converted to and displayed in exponential format. Y ou can specify one of two dif ferent ranges for automatic changeover to exponential display . Norm 1 ........... 10 –2 (0.01) > | x |, | x | > 10 10 Norm [...]

12 k Special Display Formats This calculator uses special display formats to indicate fractions, hexadecimal val- ues, and sexagesimal values. u Fractions ..... Indicates: 456 u Hexadecimal V alues ..... Indicates: ABCDEF12 (16) , which equals –1412567278 (10) u Sexagesimal V alues ..... Indicates: 12 ° 34’ 56.78" • In addition to the a[...]

13 4. Contrast Adjustment Adjust the contrast whenever objects on the display appear dim or difficult to see. u T o display the contrast adjustment screen Highlight the CONT icon in the Main Menu and then press w . Use d and e to adjust contrast. • d makes figures on the screen lighter , while e makes them darker . • Holding down d or e changes[...]

14 5. When you keep having problems… If you keep having problems when you are trying to perform operations, try the fol- lowing before assuming that there is something wrong with the calculator . k Get the Calculator Back to its Original Mode Settings 1. In the Main Menu, select the RUN icon and press w . 2. Press ! Z to display the Set Up Screen[...]