Casio fx-85WA manual

E S F G I fx-85W fx-85W A fx-300W fx-350TL User’s Guide Guía del usuario Mode d’emploi Bedienungsanleitung Guida dell’utilizzatore[...]

Removing and Replacing the Calculator’ s Co ver • To Remove the co ver Gr asp the top of the co v er, and slide the unit out from the bottom. • To Replace the cover Gr asp the top of the co ver , and slide the unit in from the bottom. Alw a ys slide the unit into the co ver with the unit’ s display end first. Ne ver slide the ke yboard end [...]

E-1 Safety Precautions Be sure to read the follo wing safety precautions before using this calculator. K eep this man ual handy f or later ref- erence. Caution This symbol is used to indicate infor mation that can result in personal injur y or material damage if ignored. Batteries • After removing the batteries from the calculator , put them in a[...]

E-2 • The displays and illustr ations (such as ke y mar kings) sho wn in this User’s Guide are f or illustrativ e pur- poses only , and may differ some what from the actual items the y represent. • The contents of this manual are subject to change without notice . • In no ev ent shall CASIO Computer Co., Ltd. be liab le to any one for speci[...]

E-3 • Av oid use and stora g e in areas subjected to tempera- ture e xtremes. Ve ry lo w temperatures can cause slow displa y response, total failure of the displa y , and shortening of batter y lif e. Also avoid leaving the calculator in direct sunlight, near a window, near a heater or anywhere else it might be- come exposed to v er y high tempe[...]

E-4 Contents Safety Precautions .......................................... 1 Handling Precautions ....................................... 2 Tw o-line Display ............................................... 5 Ke y Lay out ........................................................ 6 Before Starting Calculations... ....................... 8 k Modes ....[...]

E-5 k Pe rm utation .......................................................... 18 k Combination ......................................................... 18 Statistical Calculations .................................. 19 k Standard Deviation (SD Mode) ............................ 19 k Regression Calculations (REG Mode) ................. 20 Formula M[...]

E-6 ScI McI ScI McI x! DT CL M- M A BI N S ScI McI AB C sin -1 cos -1 tan -1 D XY EF r y y Rnd Ran# e 10 SHIFT ALPHA MODE OFF REPLA Y Key Layout Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 12 9 16 18 16 16 18 16 18 16 15 12 18 15 15 17 12 16 16 15 15 11 25 11 11 11 14 11 14 11 11 25 14 15 14 11 20 20 11 11 11 11 11 11[...]

E-7 LOGIC 16 24 x! DT CL M- M A nPr nCr BI N S ScI McI AB C sin -1 cos -1 tan -1 D XY EF r y y Rnd Ran# 10 e SHIFT ALPHA MODE ON REPLA Y DEC OCT HEX BIN Key Layout Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 12 9 2 23 16 23 16 16 18 18 16 15 12 24 15 24 15 24 17 12 16 16 15 15 11 25 11 11 11 14 11 14 11 11 25 14 15 14[...]

E-8 Bef ore Star ting Calculations... k Modes Application Mode Mode Name Indicator Calculation Modes Normal calculations COMP – Standard deviation SD SD calculations Reg ression calculations REG REG Base- n calculations BASE-N b (binary) (fx-85W only) o (octal) d (decimal) H (hexadecimal) Angle Unit Modes Degrees DEG R Radians RAD T Gr ads GRA B [...]

E-9 k Input Capacity • The memor y area used for calculation input can hold 79 “st eps .” Whenever y ou input the 73rd step of any calcu- lation, the cursor changes from “_” to “ k ” t o let y ou know memory is r unning low . If you still need to input more, you should divide your calculation into tw o or more par ts. k Making Correct[...]

E-10 k Exponential Display Formats This calculator can display up to 10 digits . Larger v alues are automatically display ed using exponential notation. In the case of decimal values , y ou can select betw een two fo rm ats that deter mine at what point e xponential notation is used. Press F F F F 3 1 ( or 2 ) to select NORM 1 or NORM 2 (fx-85W). F[...]

E-11 Basic Calculations •U se the COMP mode for basic calculations. • Example 1 : 3  (5  10 –9 ) 3 - R 5 e D 9 T = • Example 2 : 5  (9  7) 5 - R 9 + 7 T = •Y ou can skip all T operations before = . Memor y Calculations k Independent Memory •V alues can be input directly into memor y , added to memor y , or subtracted from me[...]

E-12 • Example: 193.2  23  8.4 193.2  28  6.9 193.2 j 1 23 = p 1 28 = Fraction Calculations k Fraction Calculations •U se the COMP mode for fraction calculations. •V alues are automatically displa y ed in decimal format whenever the total n umber of digits of a fractional v alue (integer  num er a to r  denominator  s[...]

E-13 C C Pe r centa g e Calculations •U se the COMP mode for percentage calculations. • Example 1 : To calculate 12% of 1500 1500 - 12 A v • Example 2 : To calculate what percentage of 880 is 660 660 880 A v • Example 3 : To add 15% onto 2500 2500 - 15 A v + • Example 4 : To discount 3500 b y 25% 3500 - 25 A v , • Example 5: If 300 gr[...]

E-14 Scientific Function Calculations •U se the COMP mode for scientific function calculations. •  = 3.14159265359 k T rigonometric/In verse T rigonometric Functions • Example 1 : sin63 ° 52  41  fx-85W: q q q 1 → “ R ” Other models: q q 1 S 63 I 52 I 41 I = • Example 2 : cos ( r ad ) fx-85W: q q q 2 → “ T ” Other mode[...]

E-15 k Hyperbolic/In verse Hyperbolic Functions • Example 1 : sinh 3.6 M S 3.6 = • Example 2 : sinh  1 30 M A j 30 = k Angle Unit Con version •P ress A v to displa y the following men u. 1 2 3 D R G •P ressing 1 , 2 , or 3 converts the display ed value to the corresponding angle unit. • Example : To conver t 4.25 r adians to degrees fx[...]

E-16 k Square Roots, Cube Roots, Roots, Squares, Cubes, Recipr ocals, Factorials, Random Numbers and π • Example 1: 2  3  5 L 2 + L 3 - L 5 = • Example 2: 3 5  3  27 D 5 + D D 27 = • Example 3: 7 123 ( = 123 ) 7 A H 123 = • Example 4: 123  30 2 123 + 30 K = • Example 5: 12 3 12 N = • Example 6: R 3 a , 4 a T a = • Exam[...]

E-17 (Specifies three decimal places .) fx-85W: F F F F 1 3 Other models: q q q 1 3 200 7 = - 14 = Pe rforming the same calculation using the specified nu mber of decimal places 200 7 = (Inter nal rounding) A Q - 14 = •P ress F F F F 3 1 (fx-85W) to clear FIX speci- fication. F or other models, press F F F 3 1 . • Example 2: 1  3, displa[...]

E-18 2. 00 T 1. 00 1.732050808 00 R 1.047197551 00 840. 210. k Coor dinate Con ver sion (P ol( x , y ), Rec ( r , θ )) •C alculation results are automatically assigned to vari- ables E and F . • Example 1: To con ver t polar coordinates ( r  2,   60 ° ) to rectangular coordinates ( x , y ) (DEG mode) x A F 2 P 60 T = y 0 o • 0 n , [...]

E-19 52. 00 SD 1.407885953 00 1.316956719 00 53.375 00 8. 00 22805. 00 427. 00 Statistical Calculations k Standard De viation (SD Mode) •P ress F F 1 (fx-85W) to enter the SD Mode for sta- tistical calculations using standard deviation. For other models, press F 2 . •D ata input alwa ys star ts with A m = to clear statisti- cal memor y . •I n[...]

E-20 Data Input Precautions • S S inputs the same data twice . •Y ou can also input m ultiple entries of the same data us- ing A G . To input the data 110 ten times, f or example , press 110 A G 10 S . • The abov e results can be obtained in an y order , and not necessarily that shown abov e . •T o delete data y ou have just input, press A [...]

E-21 •L inear Regression The regression f or mula f or linear regression is: y  A  B x . • Example: Atmospher ic Pressure vs . T emper ature Pe rform linear reg ression to deter- mine the regression f or m ula terms and correlation coefficient f or the data nearb y . Ne xt, use the reg res- sion f or m ula to estimate atmos- pheric pressu[...]

E-22 • Example: Pe rfor m quadratic regression to de- ter mine the regression for m ula ter ms and correlation coefficient for the data nearby . Next, use the reg ression f or- mu la to estimate the values f or ˆ y ( es- timated value of y ) f or x i = 16 and ˆ x (estimated value of x ) f or y i = 20. Enter REG mode (Quadratic reg ression) fx-8[...]

E-23 Formula Memory (fx- 85W ) •F ormula memor y lets y ou input a single f or mula in memor y , and then input v alues for the formula's v ar iables to calculate results. •M emory can hold a single f or m ula, up to 79 steps long. This function can be used in the COMP mode only . •N o t e that the formula is actually stored in memor y w[...]

E-24 •Y ou can use the f ollowing logical oper ators betw een values in Base- n calculations: and (logical product), or (logical sum), xor (exclusive logical sum), xnor (e xclu- sive logical sum negation), Not (negation), and Neg (min us). • The following are the allowab le r anges for each of the av ailab le n umber systems. Binary 1000000000 [...]

E-25 Degrees, Minutes, Seconds Calculations •Y ou can perf or m se xagesimal calculations using deg rees (hours), min utes , and seconds, and convert betw een sexagesimal and decimal values . • Example 1: To con ver t the decimal value 2.258 to a sexagesimal v alue 2.258 = 2.258 A O 2 ° 15 ° 28.8 • Example 2: To perf or m the following calc[...]

E-26 < fx-85W/ fx-85W A / fx-300W > If the above steps do not correct the prob lem, press the 5 ke y. The calculator perfor ms a self-chec k oper ation and deletes all data stored in memory if any abnormality is detected. Make sure y ou alwa ys k eep wr itten copies of all impor tant data. k Error Messa g es The calculator is lock ed up while[...]

E-27 Arg ERR OR •C ause •I mproper use of argument •A c tion •P ress e or r to display the location of the cause of the error and mak e required corrections. k Order of Operations Calculations are performed in the follo wing order of prec- edence. 1 Coordinate transf or mation: P ol ( x , y ), Rec ( r , θ ) 2 T ype A functions: With these [...]

E-28 k Po wer Supply The type of batter y you should use depends on the model num ber of y our calculator . < fx-85W/ fx-85W A / fx-300W> The TW O WA Y PO WER system actually has two po wer supplies: a solar cell and a G13 T ype (LR44) button bat- ter y . Nor mally , calculators equipped with a solar cell alone can operate only when relativ e[...]

E-29 < fx-350TL> This calculator is powered b y single G13 T ype (LR44) b ut- ton batter y . •R eplacing the Batter y Dim figures on the display of the calculator indicate that batter y power is low . Contin ued use of the calculator when the batter y is low can result in improper operation. Replace the batter y as soon as possible when dis[...]

E-30 k Input Ranges Internal digits: 12 Accuracy: As a rule, accur acy is ± 1 at the 10th digit. Functions Input Range sin x DEG 0   x   4.499999999  10 10 RAD 0   x   785398163.3 GRA 0   x   4.499999999  10 10 cos x DEG 0   x   4.500000008  10 10 RAD 0   x   785398164.9 GRA 0 ?[...]

E-31 1 2 n +1 Functions Input Range n P r 0  n  99, r  n ( n , r is an integer) 1  { n !/( n – r )!}  9.999999999  10 99 n C r 0  n  99, r  n ( n , r is an integer) Pol( x , y )  x  ,  y   9.999999999  10 49 ( x 2 + y 2 )  9.999999999  10 99 Rec( r ,  ) 0  r  9.999999999  10 99 θ : S[...]

E-32 Specifications Po wer Supply: fx-85W/ fx-85W A / fx-300W : Solar cell and a single G13 T ype button bat- ter y (LR44) fx-350TL: Single G13 T ype button battery (LR44) Batter y Lif e: fx-85W/ fx-85W A / fx-300W : Approximately 3 y ears (1 hour use per day). fx-350TL: Approximately 12,000 hours continuous dis- play of flashing cursor. Approximat[...]

CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K.[...]

SA9810-B Printed in China Imprimé en Chine HA310667-1 U.S. Pat. 4,410.956 CASIO COMPUTER CO. , L TD . 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan[...]