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fx-85W
fx-85WA
fx-300W
fx-350TL
User’s Guide
Guía del usuario
Mode d’emploi
Bedienungsanleitung
Guida dell’utilizzatore
E S F G I
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ENGLISH Removing and Replacing the Calculator’s Cover • To Remove the cover Grasp the top of the cover, and slide the unit out from the bottom. • To Replace the cover Grasp the top of the cover, and slide the unit in from the bottom. Always slide the unit into the cover with the unit’s display end first. Never slide the keyboard end of the unit into the cover.
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Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later ref- erence. Caution This symbol is used to indicate information that can result in personal injury or material damage if ignored. Batteries • After removing the batteries from the calculator, put them in a safe place where there is no danger of them getting into the hands of small children and accidently swallowed. • Keep batteries out of the reach of small children
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• The displays and illustrations (such as key markings) shown in this User’s Guide are for illustrative pur- poses only, and may differ somewhat from the actual items they represent. • The contents of this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. be liable to anyone for special, collateral, incidental, or con- sequential damages in connection with or arising out of the purchase or use of these materials. Moreover, CASIO Computer Co., Ltd. shall no
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• Avoid use and storage in areas subjected to tempera- ture extremes. Very low temperatures can cause slow display response, total failure of the display, and shortening of battery life. Also avoid leaving the calculator in direct sunlight, near a window, near a heater or anywhere else it might be- come exposed to very high temperatures. Heat can cause discoloration or deformation of the calculator’s case, and damage to internal circuitry. • Avoid use and storage in areas subjected to large amou
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Contents Safety Precautions .......................................... 1 Handling Precautions ....................................... 2 Two-line Display ............................................... 5 Key Layout ........................................................ 6 Before Starting Calculations... ....................... 8 kModes .................................................................... 8 kInput Capacity ........................................................ 9 kMaking Correcti
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kPermutation.......................................................... 18 kCombination ......................................................... 18 Statistical Calculations ..................................19 kStandard Deviation (SD Mode) ............................ 19 kRegression Calculations (REG Mode) ................. 20 Formula Memory (fx-85W ) .............................23 Base-n Calculations (fx-85W ) ....................... 23 Degrees, Minutes, Seconds Calculations .... 25 Technical
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Key Layout Key Layout 9 Page 12 REPLAY SHIFT ALPHA MODE OFF Page 16 18 18 16 x! Rec ( Page 16 18 18 16 16 15 Page 12 15 15 10 e Page 17 12 16 16 15 15 Page 11 25 11 11 11 14 11 14 11 -1 -1 -1 AB C sin D cosEF tan Page 11 25 15 14 14 Page 20 11 20 11 11 11 r XY M- M 19 DT CL 20 Page 11 11 11 11 11 Page 20 20 20 9 11 19 ABI CNS McI ScI Page 9 Page 20 20 20 y Page 19 19 19 20 20 y Page 17 16 16 15 13 Rnd Ran# DRG Page 11 10 fx-85WA/fx-300W: 2 McI ScI McI ScI OFF ON E-6
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Key Layout < fx-85W > 9 Page 12 2 REPLAY SHIFT ALPHA MODE ON Page 23 16 24 18 16 Rec ( x! LOGIC Page 23 16 18 16 16 15 Page 12 24 15 24 15 24 DEC HEX 10 BIN e OCT Page 17 12 16 16 15 15 Page 11 25 11 11 11 14 11 14 11 -1 -1 -1 AB C sin D cosEF tan Page 11 25 15 14 14 20 11 20 11 11 11 Page r XY M- M 19 DT CL 20 Page 11 11 11 11 11 Page 20 20 20 9 11 19 ABI CNS McI ScI Page 9 Page 20 20 20 18 18 y nPr nCr Page 19 19 19 20 20 y Page 17 16 16 15 13 Rnd Ran# DRG Page 11 10 E-7
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Before Starting Calculations... k Modes Mode Mode Application Name Indicator Calculation Modes Normal calculations COMP – Standard deviation SD SD calculations Regression 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 Grads GRA B Display Modes Exponential notation NORM1 – (Canceling FIX and SCI NORM2 – specification) Number of decimal FIX Fix place specification Number of significant SCI
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k Input Capacity • The memory area used for calculation input can hold 79 “steps.” Whenever you input the 73rd step of any calcu- lation, the cursor changes from “_” to “k” to let you know memory is running low. If you still need to input more, you should divide your calculation into two or more parts. k Making Corrections During Input •Use e and r to move the cursor to the location you want. •Press [ to delete the number or function at the current cursor position. •Press A K to change to an in
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k Exponential Display Formats This calculator can display up to 10 digits. Larger values are automatically displayed using exponential notation. In the case of decimal values, you can select between two formats that determine at what point exponential notation is used. Press F F F F 3 1 (or 2) to select NORM 1 or NORM 2 (fx-85W). For other models, press F F F 3 1 (or 2). • NORM 1 With NORM 1, exponential notation is automatically used for integer values with more than 10 digits and decimal valu
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Basic Calculations •Use the COMP mode for basic calculations. –9 • Example 1: 3(510 ) -08 3 - R 5 e D 9 T = 1.5 • Example 2: 5(97) 00 5 - R 9 + 7 T = 80. •You can skip all T operations before =. Memory Calculations k Independent Memory •Values can be input directly into memory, added to memory, or subtracted from memory. Independent memory is convenient for calculating cumulative totals. •Independent memory uses the same memory area as variable M. •To clear independent memory (M), input 0 j
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• Example: 193.2 23 8.4 193.2 28 6.9 00 193.2 j 1 \ 23 = 8.4 00 p 1 \ 28 = 6.9 Fraction Calculations k Fraction Calculations •Use the COMP mode for fraction calculations. •Values are automatically displayed in decimal format whenever the total number of digits of a fractional value (integer numerator denominator separator marks) exceeds 10. 2 4 • Example 1: 1 3 5 00 2 C 3 + 1 C 4 C 5 = 2 7 15. 1 • Example 2: 1.6 2 00 1 C 2 + 1.6 = 2.1 •Fraction/decimal calculation re
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00 C 0.5 00 C 1 2. Percentage Calculations •Use the COMP mode for percentage calculations. • Example 1: To calculate 12% of 1500 00 1500 - 12 A v 180. • Example 2: To calculate what percentage of 880 is 660 00 660 \ 880 A v 75. • Example 3: To add 15% onto 2500 00 2500 - 15 A v + 2875. • Example 4: To discount 3500 by 25% 00 3500 - 25 A v , 2625. • Example 5: If 300 grams are added to a test sample originally weighing 500 grams, what is the percentage increase in weight? 300 500 100 160 (%
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Scientific Function Calculations •Use the COMP mode for scientific function calculations. • = 3.14159265359 k Trigonometric/Inverse Trigonometric Functions • Example 1: sin63°5241 fx-85W: q q q 1 →“ ” R Other models: q q 1 00 0.897859012 S 63 I 52 I 41 I = R π • Example 2: cos ( rad) 3 fx-85W:q q q 2 →“ ” T Other models: q q 2 00 0.5 W R A x \ 3 T = T 2 π 1 • Example 3: cos rad 2 4 fx-85W: q q q 2 →“ ” T Other models: q q 2 00 0.785398163 A V R L 2 \ 2 T = T 00 g \ A x =
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k Hyperbolic/Inverse Hyperbolic Functions • Example 1: sinh 3.6 00 M S 3.6 = 18.28545536 1 • Example 2: sinh 30 00 M A j 30 = 4.094622224 k Angle Unit Conversion •Press A v to display the following menu. D R G 1 2 3 •Pressing 1, 2, or 3 converts the displayed value to the corresponding angle unit. • Example : To convert 4.25 radians to degrees fx-85W: q q q 1 →“ ” R Other models: q q 1 r 4 . 2 5 ( ) 4.25 A v 2 R = 243.5070629 k Common and Natural Logarithms/ Antilogarithms 00 •
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k Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and π • Example 1: 2 3 5 00 L 2 + L 3 - L 5 = 5.287196909 3 3 • Example 2: 5 27 00 D 5 + D D 27 = –1.290024053 1 7 7 • Example 3: 123 ( = 123 ) 00 7 A H 123 = 1.988647795 2 • Example 4: 12330 00 123 + 30 K = 1023. 3 00 • Example 5: 12 12 N = 1728. 1 • Example 6: 1 1 3 4 00 R 3 a , 4 a T a = 12. 00 • Example 7: 8! 8 A f = 40320. • Example 8: To generate a random number between 0.00
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(Specifies three decimal places.) fx-85W:F F F F 1 3 00 400.000 Fix Other models:q q q 1 3 (Calculation continues using 10 00 200 \ 7 = 28.571 display digits) 00 - 14 = 400.000 Performing the same calculation using the specified number of decimal places 00 200 \ 7 = 28.571 00 (Internal rounding) A Q 28.571 00 - 14 = 399.994 •Press F F F F 3 1 (fx-85W) to clear FIX speci- fication. For other models, press F F F 3 1. • Example 2: 1 3, displaying result with two significant digits (SCI 2) fx-85W
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k Coordinate Conversion (Pol(x, y), Rec (r, θ)) •Calculation results are automatically assigned to vari- ables E and F. • Example 1: To convert polar coordinates (r2, 60°) to rectangular coordinates (x, y) (DEG mode) 00 1. x A F 2 P 60 T = R 00 y 0 o 1.732050808 •0 n, 0 o swaps displayed value with value in memory. • Example 2: To convert rectangular coordinates (1, 3) to polar coordinates (r, ) (RAD mode) 00 2. r f 1 P L 3 T = T 00 θ 0 o 1.047197551 •0 n, 0 o swaps displayed value with
