fx-85W fx-85WA fx-300W fx-350TL User’s Guide Guía del usuario Mode d’emploi Bedienungsanleitung Guida dell’utilizzatore ESFGI
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.
Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later reference. 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.
• The displays and illustrations (such as key markings) shown in this User’s Guide are for illustrative purposes 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 consequential damages in connection with or arising out of the purchase or use of these materials. Moreover, CASIO Computer Co., Ltd.
• 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 become exposed to very high temperatures. Heat can cause discoloration or deformation of the calculator’s case, and damage to internal circuitry.
Contents Safety Precautions .......................................... 1 Handling Precautions ....................................... 2 Two-line Display ............................................... 5 Key Layout ........................................................ 6 Before Starting Calculations... ....................... 8 kModes .................................................................... 8 kInput Capacity ........................................................
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 ....
Key Key Layout Layout Page Page Page Page Page Page 16 x! 18 16 OFF 16 18 18 12 17 11 11 Page Page 11 20 18 12 25 11 16 16 11 25 16 11 15 20 14 11 11 11 X r 11 16 15 sin-1 D C B 15 15 10 e 15 14 11 15 14 11 cos-1 E tan-1 F 14 20 11 11 11 M- Y 19 M DT CL 20 20 9 11 11 19 A B C INS McI ScI 20 20 20 19 19 19 17 16 16 Rnd Ran# 9 y Page MODE Rec ( Page Page Page REPLAY ALPHA A Page Page 9 12 SHIFT 20 20 15 13 y DRG Page 1
Key Layout < fx-85W > Page Page Page Page Page Page 23 23 17 11 18 x! LOGIC Rec ( 12 25 11 Page Page 11 Page Page 11 20 Page 16 15 24 HEX 10 BIN 16 11 16 11 15 14 11 sin-1 D C 15 20 14 11 11 11 X cos-1 15 15 24 e OCT 15 14 11 tan-1 F E 14 20 11 11 11 M- Y 19 M DT CL 20 20 9 11 11 19 A B C INS McI ScI 20 20 20 9 18 18 nPr nCr 20 20 15 13 y Page 16 24 DEC r 19 11 ON 18 B 25 MODE 16 16 24 16 12 2 REPLAY ALPHA A Page Page 9 12 SHIFT 1
Before Starting Calculations...
k Input Capacity • The memory area used for calculation input can hold 79 “steps.” Whenever you input the 73rd step of any calculation, 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.
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).
Basic Calculations • Use the COMP mode for basic calculations. • Example 1 : 3 (5 10–9) 3-R5eD9T= 1.5-08 • Example 2 : 5 (9 7) 5-R9+7T= 80.00 • You can skip all T operations before =. Memory Calculations k Independent Memory • Values can be input directly into memory, added to memor y, 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 3.
• Example: 193.2 23 8.4 193.2 28 6.9 193.2 j 1 \ 23 = 8.400 p 1 \ 28 = 6.900 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. • Example 1 : 2 4 1 3 5 2C3 +1C 4C 5= • Example 2 : 2 7 15.00 1 1.6 2 1 C 2 + 1.6 = 2.
C 0.500 C 1 2. 00 Percentage Calculations • Use the COMP mode for percentage calculations. • Example 1 : To calculate 12% of 1500 1500 - 12 A v 180.00 • Example 2 : To calculate what percentage of 880 is 660 660 \ 880 A v 75.00 • Example 3 : To add 15% onto 2500 2500 - 15 A v + 2875.00 • Example 4 : To discount 3500 by 25% 3500 - 25 A v , 2625.
Scientific Function Calculations • Use the COMP mode for scientific function calculations. • = 3.14159265359 k Trigonometric/Inverse Trigonometric Functions • Example 1 : sin63°52 41 fx-85W: q q q 1 →“ R ” Other models: q q 1 00 S 63 I 52 I 41 I = 0.897859012 R π rad 3 fx-85W: q q q 2 →“ ” T Other models: q q 2 • Example 2 : cos ( ) WRAx\3T= 0.500 T 2 π • Example 3 : cos rad 2 4 fx-85W: q q q 2 →“ ” T Other models: q q 2 1 00 A V R L 2 \ 2 T = 0.785398163 T g\Ax= 0.
k Hyperbolic/Inverse Hyperbolic Functions • Example 1 : sinh 3.6 M S 3.6 = 18.2854553600 • Example 2 : sinh 1 30 M A j 30 = 4.09462222400 k Angle Unit Conversion • Press A v to display the following menu. R G 1 2 D 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 4 . 25 r 4.25 A v 2 (R ) = 243.5070629 k Common and Natural Logarithms/ Antilogarithms • Example 1 : log 1.
k Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and π • Example 1: 2 3 5 L2 +L3 -L 5= 5.28719690900 • Example 2: 3 5 3 27 D 5 + D D 27 = –1.29002405300 • Example 3: 7 1 123 ( = 123 7 ) 7 A H 123 = 1.98864779500 • Example 4: 123 30 2 123 + 30 K = 1023.00 12 N = 1728.00 R 3a ,4 a T a = 12.00 8Af= 40320.00 • Example 5: 12 3 • Example 6: 1 1 1 3 4 • Example 7: 8! • Example 8: To generate a random number between 0.000 and 0.999 AM= 0.
(Specifies three decimal places.) fx-85W: F F F F 1 3 Other models: q q q 1 3 400.00000 200 \ 7 = 28.57100 - 14 = 400.00000 (Calculation continues using 10 display digits) Fix Performing the same calculation using the specified number of decimal places 200 \ 7 = 28.57100 AQ 28.57100 - 14 = 399.994 00 (Internal rounding) • Press F F F F 3 1 (fx-85W) to clear FIX specification. For other models, press F F F 3 1.
k Coordinate Conversion (Pol(x, y), Rec (r, θ)) • Calculation results are automatically assigned to variables E and F. • Example 1: To convert polar coordinates (r 2, 60°) to rectangular coordinates (x, y) (DEG mode) x A F 2 P 60 T = y 0o 1.00 R 1.73205080800 • 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) r f1P L3T= 2.00 T 0 o 1.
Statistical Calculations k Standard Deviation (SD Mode) • Press F F 1 (fx-85W) to enter the SD Mode for statistical calculations using standard deviation. For other models, press F 2. • Data input always starts with A m = to clear statistical memory. • Input data is used to calculate values for 0 1 Σx2 n, Σx, Σx2, o, σn and σn-1 which you can 0 2 Σx recall using the key operations noted 0 k n nearby.
Data Input Precautions • S S inputs the same data twice. • You can also input multiple entries of the same data using A G. To input the data 110 ten times, for example, press 110 A G 10 S. • The above results can be obtained in any order, and not necessarily that shown above. • To delete data you have just input, press A U. k Regression Calculations (REG Mode) • Press F F 2 (fx-85W) to enter the REG mode and then select one of the following regression types. For other models, press F 3.
• Linear Regression The regression formula for linear regression is: y A Bx. • Example: Atmospheric Pressure vs. Temperature Temperature Atmospheric Pressure 10°C 15°C 20°C 25°C 30°C 1003 hPa 1005 hPa 1010 hPa 1011 hPa 1014 hPa Perform linear regression to determine the regression formula terms and correlation coefficient for the data nearby. Next, use the regression formula to estimate atmospheric pressure at 18°C and temperature at 1000 hPa.
• Example: xi yi 29 50 74 103 118 1.6 23.5 38.0 46.4 48.0 Perform quadratic regression to determine the regression formula terms and correlation coefficient for the data nearby. Next, use the regression formula to estimate the values for ŷ (estimated value of y) for xi = 16 and x̂ (estimated value of x) for yi = 20. Enter REG mode (Quadratic regression) fx-85W: F F 2 r 3 Other models: q 3 r 3 Am= 29 P 1.6 S 50 P 23.5 S 74 P 38.0 S103 P 46.4 S 118 P 48.0 S 118.
Formula Memory (fx-85W) • Formula memory lets you input a single formula in memory, and then input values for the formula's variables to calculate results. • Memory can hold a single formula, up to 79 steps long. This function can be used in the COMP mode only. • Note that the formula is actually stored in memory when you press the C key in the sequence below. • Example: To save the following formula, recall it, and then use it to calculate a result: Y = X2 + 3X – 12 Input the formula.
• You can use the following logical operators between values in Base-n calculations: and (logical product), or (logical sum), xor (exclusive logical sum), xnor (exclusive logical sum negation), Not (negation), and Neg (minus). • The following are the allowable ranges for each of the available number systems.
Degrees, Minutes, Seconds Calculations • You can perform sexagesimal calculations using degrees (hours), minutes, and seconds, and convert between sexagesimal and decimal values. • Example 1: To convert the decimal value 2.258 to a sexagesimal value 2.258 = 2.258 AO 2°15°28.8 • Example 2: To perform the following calculation: 12°34’56” 3.45 12 I 34 I 56 I - 3.45 0. = 43°24°31.2 Technical Information k When you have a problem......
< fx-85W/ fx-85WA / fx-300W > If the above steps do not correct the problem, press the 5 key. The calculator performs a self-check operation and deletes all data stored in memory if any abnormality is detected. Make sure you always keep written copies of all important data. k Error Messages The calculator is locked up while an error message is on the display. Press t to clear the error, or press e or r to display the calculation and correct the problem. See “Error Locator” on page 9 for details.
Arg ERROR • Cause • Improper use of argument • Action • Press e or r to display the location of the cause of the error and make required corrections. k Order of Operations Calculations are performed in the following order of precedence. 1 Coordinate transformation: Pol ( x, y), Rec (r, θ) 2 Type A functions: With these functions, the value is entered and then the function key is pressed.
k Power Supply The type of battery you should use depends on the model number of your calculator. < fx-85W/ fx-85WA / fx-300W> The TWO WAY POWER system actually has two power supplies: a solar cell and a G13 Type (LR44) button battery. Normally, calculators equipped with a solar cell alone can operate only when relatively bright light is present. The TWO WAY POWER system, however, lets you continue to use the calculator as long as there is enough light to read the display.
< fx-350TL> This calculator is powered by single G13 Type (LR44) button battery. • Replacing the Battery Dim figures on the display of the calculator indicate that battery power is low. Continued use of the calculator when the battery is low can result in improper operation. Replace the battery as soon as possible when display figures become dim. • To replace the battery 1 Press i to turn power off. 2 Remove the two screws that hold the battery cover in place and then remove the battery cover.
k Input Ranges Internal digits: 12 Accuracy: As a rule, accuracy is ±1 at the 10th digit. Functions sinx Input Range DEG 0 x 4.499999999 1010 RAD 0 x 785398163.3 GRA 0 x 4.499999999 1010 cosx DEG 0 x 4.500000008 1010 RAD 0 x 785398164.9 GRA 0 x 5.000000009 1010 tan x DEG Same as sinx, except when x = (2n-1) 90. RAD Same as sinx, except when x = (2n-1) π/2. GRA Same as sinx, except when x = (2n-1) 100. sin–1x cos–1x 0 x 1 tan–1x 0 x 9.999999999 1099 sinhx coshx 0 x 230.
Functions Input Range nP r 0 n 99, r n (n, r is an integer)99 1 {n!/( n–r)!} 9.999999999 10 nCr 0 n 99, r n (n, r is an integer) 49 Pol(x, y) x , y 9.999999999 10 (x2 +y2 ) 9.999999999 10 99 99 Rec(r, ) 0 r 9.
Specifications Power Supply: fx-85W/ fx-85WA / fx-300W: Solar cell and a single G13 Type button battery (LR44) fx-350TL: Single G13 Type button battery (LR44) Battery Life: fx-85W/ fx-85WA / fx-300W: Approximately 3 years (1 hour use per day). fx-350TL: Approximately 12,000 hours continuous display of flashing cursor. Approximately 3 years when left with power turned off. Dimensions: 10(H) 76(W) 150(D) mm 3 / 8 ⬙(H) 3⬙(W) 5 7 /8 ⬙(D) Weight: fx-85W/ fx-85WA / fx-300W: 80 g (2.
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