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fx-100W
fx-115W
fx-570W
fx-991W
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 ac- tual items they represent. • The contents of this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. be li- able to anyone for special, collateral, incidental, or consequential damages in connection with or aris- ing out of the purchase or use of these materials. Moreover, CASIO Computer Co., Ltd. shal
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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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Statistical Calculations ..................................19 kStandard Deviation (SD Mode) ............................ 19 kProbability Distribution Calculations ................... 20 kRegression Calculations (REG Mode) ................. 21 Complex Number Calculations (CMPLX Mode) ............................................... 23 kAbsolute Value/Argument Calculation .................. 24 Formula Memory ............................................ 24 Metric Conversions (fx-570W/ fx-991W ) ....
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Key Layout Key Layout < fx-570W > 9 Page 12 REPLAY SHIFT ALPHA MODE OFF Page 25 16 29 25 15 16 x! LOGIC CONV Page 25 30 16 27 16 15 Page 18 24 12 29 15 29 15 29 DEC HEX 10 BIN e OCT Page 17 12 15 16 15 15 Page 11 30 11 11 11 14 11 14 11 -1 -1 -1 AB C sin D cosEF tan Page 11 30 14 14 14 Page 20 24 21 24 24 11 20 11 11 11 DISTR Re<->lm r arg AbsXY M- M 20 DT CL 20 Page 11 11 11 11 11 Page 21 17 21 17 21 17 9 11 19 AMBI G C TNS McI ScI Page 9 Page 21 17 21 17 21 17 19 1
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Key Layout < fx-991W > 9 Page 12 2 REPLAY SHIFT ALPHA MODE ON Page 25 16 29 25 15 16 x! LOGIC CONV Page 25 30 16 27 16 15 Page 18 24 12 29 15 29 15 29 DEC HEX 10 BIN e OCT Page 17 12 15 16 15 15 Page 11 30 11 11 11 14 11 14 11 -1 -1 -1 AB C sin D cosEF tan Page 11 30 14 14 14 Page 20 24 21 24 24 11 20 11 11 11 DISTR Re<->lm r arg AbsXY M- M 20 DT CL 20 Page 11 11 11 11 11 Page 21 17 21 17 21 17 9 11 19 AMBI G C TNS McI ScI Page 9 Page 21 17 21 17 21 17 19 19 y µ mk n
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Before Starting Calculations... k Modes Mode Mode Application Name Indicator Calculation Modes Normal calculations COMP – Complex number CMPLX CMPLX calculations Standard deviation SD SD calculations Regression calculations REG REG Base-n calculations BASE-N b (binary) 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
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•You cannot set the angle unit or the display mode while the calculator is in the BASE-N mode. • The COMP, CMPLX, SD, and REG modes can be used in combination with the angle unit modes. •Be sure to check the current calculation mode (SD, REG, COMP, CMPLX) and angle unit mode (DEG, RAD, GRA) before beginning a calculation. 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
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k Error Locator •Pressing r or e after an error occurs displays the calculation with the cursor positioned at the location where the error occurred. 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. • NORM 1 With NORM 1, exp
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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 “ ” → q q q 1 R 00 0.897859012 S 63 I 52 I 41 I = R π • Example 2: cos ( rad) 3 →“ ” q q q 2 T 00 0.5 W R A x \ 3 T = T 2 π 1 • Example 3: cos rad 2 4 “ ” q q q 2 → T 00 0.785398163 W A V R L 2 \ 2 T = T 00 g \ A x = 0.25 1 • Example 4: tan 0.741 →“ ” q q q 1 R 00 36.53844577 A g 0.741 = R k H
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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 “ ” → F F F 1 R r 4 . 2 5 ( ) 4.25 A v 2 R = 243.5070629 k Common and Natural Logarithms/ Antilogarithms 00 • Example 1: log 1.23 R 1.23 = 0.089905111 • Example 2: In 90 (log 90) e 00 T 90 = 4.49980967 10 00 • Example 3: e A U 10 = 22026.46579 1.5 00 • Example 4: 10 A Q 1.
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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 3 4 R a , a T a = 12. 00 • Example 7: 8! 8 A f = 40320. • Example 8: To generate a random number between 0.000 and 0.999 00 A M = 0.664 Example (results differ each time) 00 • Example 9: 3 π 3 A x = 9.424777961 k FIX, SCI, RND • Example 1: 200714400 00 200 \ 7 - 14 = 400. 00 (Specifies three 400.000 F F F F 1 3
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00 - 14 = 399.994 •Press F F F F 3 1 to clear FIX specification. • Example 2: 1 3, displaying result with two significant digits (SCI 2) –01 3.3 F F F F 2 2 1 \ 3 = Sci •Press F F F F 3 1 to clear SCI specification. k ENG Calculations • Example 1: To convert 56,088 meters to kilometers 003 56088 = J 56.088 • Example 2: To convert 0.08125 grams to milligrams –03 0.08125 = J 81.25 k Inputting ENG Calculation Symbols •F F F F F 1 enters the ENG mode in which ENG symbols can be used in calculati
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*For displayed values, the calculator selects the ENG sym- bol that makes the numeric part of the value fall within the range of 1 to 1000. * ENG symbols cannot be used when inputting fractions. * The ENG mode cannot be used in combination with the CMPLX, or BASE-N modes. •Performing any of the key operations in the above table while you are not in the ENG mode inputs the exponen- tial value in the “Unit” column (without inputting the ENG symbol). • Example: 910 = 0.9 m (milli) 0. F F F F F 1
