User Manual
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... suppliers be sure to watch the display to normal temperature. • The display will go blank and keys will not operate during calculations.When you or any other person for any damages, expenses, lost profits, lost savings, or any other components by burning them. • Before assuming malfunction of malfunction, repairs, or battery replacement (fx-85B/fx280), or insufficient...
... suppliers be sure to watch the display to normal temperature. • The display will go blank and keys will not operate during calculations.When you or any other person for any damages, expenses, lost profits, lost savings, or any other components by burning them. • Before assuming malfunction of malfunction, repairs, or battery replacement (fx-85B/fx280), or insufficient...
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Modes Application Key Mode Operation Name* Standard deviation calculations Fl SD Normal calculations Calculations using degrees F0 F4 COMP DEG Calculations using radians Calculations using grads F5 RAD F6 GRA Number of decimal place specification F7 FIX Number of the manufacturer. • Keep this manual may be reproduced in any form without notice. • No part of this manual on hand for future reference. fully reread this manual and ensure that the problem is not due to low battery power (fx...
Modes Application Key Mode Operation Name* Standard deviation calculations Fl SD Normal calculations Calculations using degrees F0 F4 COMP DEG Calculations using radians Calculations using grads F5 RAD F6 GRA Number of decimal place specification F7 FIX Number of the manufacturer. • Keep this manual may be reproduced in any form without notice. • No part of this manual on hand for future reference. fully reread this manual and ensure that the problem is not due to low battery power (fx...
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Note! • A mode guide is located at the top of the display screen. • DEG, RAD, and GRA modes can be used in combination with COMP and SD modes. • F9 does not exit SD mode. • F0 exits SD mode. • F0 does not clear SCI or FIX specifications. • Always press t before entering DEG, RAD, and GRA modes. • Remember to always set the operating mode and angular unit (DEG, RAD, GRA) before starting your calculation. - 4 -
Note! • A mode guide is located at the top of the display screen. • DEG, RAD, and GRA modes can be used in combination with COMP and SD modes. • F9 does not exit SD mode. • F0 exits SD mode. • F0 does not clear SCI or FIX specifications. • Always press t before entering DEG, RAD, and GRA modes. • Remember to always set the operating mode and angular unit (DEG, RAD, GRA) before starting your calculation. - 4 -
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Basic Calculations • Use the COMP mode for basic calculations. • Example 1: 23ѿ4.5Ҁ53 23 + 4.5 , 53 = -25.5 • Example 2: 56҂(Ҁ12)Ö(Ҁ2.5) 56 -12 E \ 2.5 E = 268.8 • Example 3: 2Ö3҂(1҂1020) 2 \ 3 -1 e 20 = 6.66666666719 • Example 4: 7҂8Ҁ4҂5=36 7 - 8 , 4 - 5 = 36. • Example 5: 6 4҂5 =0.3 4 -5 \ 6AN = 0.3 • Example 6: 2҂[7ѿ6҂(5ѿ4)]҃122 2 - O 7 + 6 - O 5+ 4PP = 122. • You can skip all P operations before the = key. - 5 -
Basic Calculations • Use the COMP mode for basic calculations. • Example 1: 23ѿ4.5Ҁ53 23 + 4.5 , 53 = -25.5 • Example 2: 56҂(Ҁ12)Ö(Ҁ2.5) 56 -12 E \ 2.5 E = 268.8 • Example 3: 2Ö3҂(1҂1020) 2 \ 3 -1 e 20 = 6.66666666719 • Example 4: 7҂8Ҁ4҂5=36 7 - 8 , 4 - 5 = 36. • Example 5: 6 4҂5 =0.3 4 -5 \ 6AN = 0.3 • Example 6: 2҂[7ѿ6҂(5ѿ4)]҃122 2 - O 7 + 6 - O 5+ 4PP = 122. • You can skip all P operations before the = key. - 5 -
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• Example 7: 4/3π53 4 \ 3 - A x - 5 A N = 523.5987756 Constant Calculations • Press +, ,, - K 51. K 68. K 34. or \ twice after inputting a number to make that number a constant. • "K" is on the display while a constant is being used. • Use the COMP mode for constant calculations. • Example 1: 2.3ѿ3, then 2.3ѿ6 (2.3ѿ3) 2.3 + + 3 = (2.3ѿ6) 6 = K 5.3 K 8.3 • Example 2: 12҂2.3, then 12҂(ȕ9) (12҂2.3) 12 - - 2.3 = (12҂...
• Example 7: 4/3π53 4 \ 3 - A x - 5 A N = 523.5987756 Constant Calculations • Press +, ,, - K 51. K 68. K 34. or \ twice after inputting a number to make that number a constant. • "K" is on the display while a constant is being used. • Use the COMP mode for constant calculations. • Example 1: 2.3ѿ3, then 2.3ѿ6 (2.3ѿ3) 2.3 + + 3 = (2.3ѿ6) 6 = K 5.3 K 8.3 • Example 2: 12҂2.3, then 12҂(ȕ9) (12҂2.3) 12 - - 2.3 = (12҂...
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• Example 4: 1.74҃8.3521 (1.7 2) 1.7 - - = (1.7 3) = (1.7 4) = K 2.89 K 4.913 K 8.3521 Memory Calculations • Use the COMP mode for memory calculations. • Use A Y, |, A { and Z for memory calculations. A Y replaces current memory contents. • "M" appears when there is a value in memory. • To clear memory, press 0 A Y or t A Y. • Example 1: (53ѿ6)ѿ(23Ҁ8)ѿ(56҂2)ѿ(99Ö4)҃210.75 (53ѿ6) 53 + 6 = A Y M 59. (23ȕ8) 23 , 8 | M ...
• Example 4: 1.74҃8.3521 (1.7 2) 1.7 - - = (1.7 3) = (1.7 4) = K 2.89 K 4.913 K 8.3521 Memory Calculations • Use the COMP mode for memory calculations. • Use A Y, |, A { and Z for memory calculations. A Y replaces current memory contents. • "M" appears when there is a value in memory. • To clear memory, press 0 A Y or t A Y. • Example 1: (53ѿ6)ѿ(23Ҁ8)ѿ(56҂2)ѿ(99Ö4)҃210.75 (53ѿ6) 53 + 6 = A Y M 59. (23ȕ8) 23 , 8 | M ...
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.... Fraction Calculations • Use COMP mode for fraction calculations. • Total number of 123 ҂ 456 in memory B. t 0 1 123. • Example 2: To store the results of digits (including division marks) cannot exceed 10. • Example 1: 2 3 ѿ 4 5 ҃1175 2 C 3 + 4 C 5 = 1 7 15. • Example 2: 3 1 4 ѿ1 2 3 ҃4 11 12 3 C 1 C 4 + 1 C 2 C 3 = 4 11 12. • Example 3: 2 4 ҃ 1 2 2 C 4 = • Example 4: 1 2 ѿ1.6҃2.1 1 C 2 + 1.6 = 2 4. 1 2. 2.1 Fraction/decimal calculation result is always decimal...
.... Fraction Calculations • Use COMP mode for fraction calculations. • Total number of 123 ҂ 456 in memory B. t 0 1 123. • Example 2: To store the results of digits (including division marks) cannot exceed 10. • Example 1: 2 3 ѿ 4 5 ҃1175 2 C 3 + 4 C 5 = 1 7 15. • Example 2: 3 1 4 ѿ1 2 3 ҃4 11 12 3 C 1 C 4 + 1 C 2 C 3 = 4 11 12. • Example 3: 2 4 ҃ 1 2 2 C 4 = • Example 4: 1 2 ѿ1.6҃2.1 1 C 2 + 1.6 = 2 4. 1 2. 2.1 Fraction/decimal calculation result is always decimal...
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...; Example 5: To convert 0.08125 grams to polar coordinates (r, ). (RAD mode) r 1 Ay 3AL = RAD 2. - 17 - y A N DEG 1.732050808 A N swaps displayed value with value in memory. • Example 2: To convert rectangular coordinates (1, 3) to milligrams. .08125 A J 81.25-03 • Example 6: To generate a random number between 0.000 and 0.999. Example (results differ each time) A c 0.664 kCoordinate Conversion • Example 1: To convert polar coordinates (r҃2, ҃60°) to rectangular coordinates (x, y). (DEG mode) x 2 A z 60...
...; Example 5: To convert 0.08125 grams to polar coordinates (r, ). (RAD mode) r 1 Ay 3AL = RAD 2. - 17 - y A N DEG 1.732050808 A N swaps displayed value with value in memory. • Example 2: To convert rectangular coordinates (1, 3) to milligrams. .08125 A J 81.25-03 • Example 6: To generate a random number between 0.000 and 0.999. Example (results differ each time) A c 0.664 kCoordinate Conversion • Example 1: To convert polar coordinates (r҃2, ҃60°) to rectangular coordinates (x, y). (DEG mode) x 2 A z 60...
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... 10 individuals. 10 A n 4 = 210. Enter SD Mode. Statistical Calculations (SD Mode) • Press F l to enter the SD Mode for the following data : 55, 54, 51, 55, 53, 53, 54, 52. F l SD 0. - 18 - kCombination • Example: To determine how many different 4-digit values can be produced using standard deviation. • If FIX or SCI is on the display, press F 9 first. • Data input always starts with A u. • Example...
... 10 individuals. 10 A n 4 = 210. Enter SD Mode. Statistical Calculations (SD Mode) • Press F l to enter the SD Mode for the following data : 55, 54, 51, 55, 53, 53, 54, 52. F l SD 0. - 18 - kCombination • Example: To determine how many different 4-digit values can be produced using standard deviation. • If FIX or SCI is on the display, press F 9 first. • Data input always starts with A u. • Example...
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... (as above). • You can be obtained in any order, and not necessarily that shown above results can also input multiple entries of values A u 55 } 54 } 51 } 55 } 53 } } 54 } 52 } SD 52. Input Data. Sample standard deviation Population standard deviation Arithmetic mean Number of data Sum of values Sum of squares of the same data using -. To input the data 110 ten times, for example, press 110 -10 }. • The above...
... (as above). • You can be obtained in any order, and not necessarily that shown above results can also input multiple entries of values A u 55 } 54 } 51 } 55 } 53 } } 54 } 52 } SD 52. Input Data. Sample standard deviation Population standard deviation Arithmetic mean Number of data Sum of values Sum of squares of the same data using -. To input the data 110 ten times, for example, press 110 -10 }. • The above...
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All clear t Sign change E • Memory Memory in A Y Memory minus A { Memory plus Memory recall Z • fx-85B/fx-280 Memory Memory A recall 0 1 Memory B recall 0 2 Memory M recall 0 3 Memory A store A J 1 - 21 - Technical Information kKeys and Their Functions • General Arithmetic calculations Backspace Q Clear(retains memory k Number input 0 - 9, l Power on;
All clear t Sign change E • Memory Memory in A Y Memory minus A { Memory plus Memory recall Z • fx-85B/fx-280 Memory Memory A recall 0 1 Memory B recall 0 2 Memory M recall 0 3 Memory A store A J 1 - 21 - Technical Information kKeys and Their Functions • General Arithmetic calculations Backspace Q Clear(retains memory k Number input 0 - 9, l Power on;
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Memory B store A J 2 Memory M store A J 3 • Special Display/memory swap A N, A d Exponent e Internal rounding A b Parentheses O, P Pi (3.1415926536 A x Select mode F Sexagesimal I, A O Shifts key functions A • Scientific Functions Arc cosine A V Arc sine A j Arc tangent A g Common antilogarithm A Q Common logarithm R Convert to degrees A F 4 Convert to grads A F 6 Convert to radians A F 5 Cosine W - 22 -
Memory B store A J 2 Memory M store A J 3 • Special Display/memory swap A N, A d Exponent e Internal rounding A b Parentheses O, P Pi (3.1415926536 A x Select mode F Sexagesimal I, A O Shifts key functions A • Scientific Functions Arc cosine A V Arc sine A j Arc tangent A g Common antilogarithm A Q Common logarithm R Convert to degrees A F 4 Convert to grads A F 6 Convert to radians A F 5 Cosine W - 22 -
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... (SD Mode) Arithmetic mean A ` Data delete A [ Data input Number of data A r Population standard deviation A p Sample standard deviation A q Statistical register clear A u Sum of squares of values A a Sum of decimal value, you can display up to 10 digits. In the case of values A o kExponential Display Formats This calculator can select between two formats that determine at what point exponential notation is used. • NORM 1 With NORM 1, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than two decimal places...
... (SD Mode) Arithmetic mean A ` Data delete A [ Data input Number of data A r Population standard deviation A p Sample standard deviation A q Statistical register clear A u Sum of squares of values A a Sum of decimal value, you can display up to 10 digits. In the case of values A o kExponential Display Formats This calculator can select between two formats that determine at what point exponential notation is used. • NORM 1 With NORM 1, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than two decimal places...
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... when inputting a value (but you expect or if an error occurs, perform the following calculation. 1 \ 200 = 5. -03 NORM 1 format 0.005 NORM 2 format • All of the examples in effect, but did not yet press an operator key), use Q to confirm it is currently in this manual show calculation results using the NORM 1 format. If calculation results are working with to backspace and delete input digits one . F 4 (DEG mode...
... when inputting a value (but you expect or if an error occurs, perform the following calculation. 1 \ 200 = 5. -03 NORM 1 format 0.005 NORM 2 format • All of the examples in effect, but did not yet press an operator key), use Q to confirm it is currently in this manual show calculation results using the NORM 1 format. If calculation results are working with to backspace and delete input digits one . F 4 (DEG mode...
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... parentheses are performed using a value that exceeds the input range. ("-E-" indicator appears on the display.) c. When function calculations are used , but the operation retains the order of precedence of the operation for the first key you just pressed, simply press the correct operator key. In this case, the operator of the last key you press is used . ("- 1-" indicator appears on the display.) • To clear any of the...
... parentheses are performed using a value that exceeds the input range. ("-E-" indicator appears on the display.) c. When function calculations are used , but the operation retains the order of precedence of the operation for the first key you just pressed, simply press the correct operator key. In this case, the operator of the last key you press is used . ("- 1-" indicator appears on the display.) • To clear any of the...
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... makes it possible for the calculator to operate even in total darkness. • The calculator retains memory contents no matter what the lighting conditions. • The TWO-WAY POWER system uses two power sources: a solar cell and a single G13 Type (SR44 or LR44) battery. • Weak battery power is within the range of the independent memory may become dim, calculation functions may be restored by the CASIO...
... makes it possible for the calculator to operate even in total darkness. • The calculator retains memory contents no matter what the lighting conditions. • The TWO-WAY POWER system uses two power sources: a solar cell and a single G13 Type (SR44 or LR44) battery. • Weak battery power is within the range of the independent memory may become dim, calculation functions may be restored by the CASIO...
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... the calculator when you purchase it ). 4. Replace the back cover and secure it in place, and then remove the cover. 2. Incorrect use of all important data. • Always be sure to become shorted. Keep batteries away from direct flame and heat. • Keep batteries out of the reach of how much the calculator is for testing only. Remove the old battery. 3. Install a new battery, making sure...
... the calculator when you purchase it ). 4. Replace the back cover and secure it in place, and then remove the cover. 2. Incorrect use of all important data. • Always be sure to become shorted. Keep batteries away from direct flame and heat. • Keep batteries out of the reach of how much the calculator is for testing only. Remove the old battery. 3. Install a new battery, making sure...
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... be stored. • Each level can contain up to three open parentheses, so parentheses can be nested up to turn power on the next page shows register contents following order of Operations and Levels Operations are nested, the operations en- formed first. edence. 1. If parentheses are performed in the following the above input. - 29 - closed in parentheses per- 5. Functions 2. kOrder...
... be stored. • Each level can contain up to three open parentheses, so parentheses can be nested up to turn power on the next page shows register contents following order of Operations and Levels Operations are nested, the operations en- formed first. edence. 1. If parentheses are performed in the following the above input. - 29 - closed in parentheses per- 5. Functions 2. kOrder...
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The calculation range is the same for radians and grads. Register Contents x4 L1 (( 5 ѿ L 2 4 ҂ L3 ((( 3 ѿ L4 2 ҂ L 5 L6 kFormulas, Ranges, and Conventions The following are the formulas, ranges, and conventions that are applied to various calculations that can be performed using this calculator. Y Y P (x, y) P (r, θ ) Pol r y Rec θ 0 x X 0 X - 30 - Coordinate Transformation • With polar coordinates, θ can be calculated within a range of -180° θ ͨ 180°.
The calculation range is the same for radians and grads. Register Contents x4 L1 (( 5 ѿ L 2 4 ҂ L3 ((( 3 ѿ L4 2 ҂ L 5 L6 kFormulas, Ranges, and Conventions The following are the formulas, ranges, and conventions that are applied to various calculations that can be performed using this calculator. Y Y P (x, y) P (r, θ ) Pol r y Rec θ 0 x X 0 X - 30 - Coordinate Transformation • With polar coordinates, θ can be calculated within a range of -180° θ ͨ 180°.
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or 10-digit mantissa plus 2-digit exponent up to 10±99 - 35 - Operating Temperature: 0°C-40°C (32°F-104°F) Dimensions: fx-82SOLAR/fx-260SOLAR: 8(H)i66.5(W)i125(D) mm 5/16"(H)i2-5/8"(W)i4-15/16"(D) fx-85B/fx-280: 13.5(H)i73(W)i144.5(D) mm 1/2"(H)i2-7/8"(W)i5-5/8"(D) Weight: fx-82SOLAR/fx-260SOLAR: 47 g (1.7oz) fx-85B/fx-280: 67 g (2.4oz) including battery Calculation Capacity: • Input/ Basic Calculations 10-digit mantissa;
or 10-digit mantissa plus 2-digit exponent up to 10±99 - 35 - Operating Temperature: 0°C-40°C (32°F-104°F) Dimensions: fx-82SOLAR/fx-260SOLAR: 8(H)i66.5(W)i125(D) mm 5/16"(H)i2-5/8"(W)i4-15/16"(D) fx-85B/fx-280: 13.5(H)i73(W)i144.5(D) mm 1/2"(H)i2-7/8"(W)i5-5/8"(D) Weight: fx-82SOLAR/fx-260SOLAR: 47 g (1.7oz) fx-85B/fx-280: 67 g (2.4oz) including battery Calculation Capacity: • Input/ Basic Calculations 10-digit mantissa;