User Manual
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...'10" 14 I 25 I 36 I + 12 I 23 I 34 I = 26°49°10. - 11 - K 216. K 276. Scientific Function Calculations • Use COMP mode for scientific function calculations. • Some calculations may take a long time to complete. • Wait for result before starting next calculation. • =3.1415926536. • Example 4: To discount 3500 by 25%. 3500 - 25 A v , 2625. • Example...
...'10" 14 I 25 I 36 I + 12 I 23 I 34 I = 26°49°10. - 11 - K 216. K 276. Scientific Function Calculations • Use COMP mode for scientific function calculations. • Some calculations may take a long time to complete. • Wait for result before starting next calculation. • =3.1415926536. • Example 4: To discount 3500 by 25%. 3500 - 25 A v , 2625. • Example...
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kTrigonometric/Inverse Trigonometric Functions • Example 1: sin ( 6 rad) (RAD mode) A x \ 6 = S RAD 0.5 - 12 - • Example 2: 1°2'3" + 4.56 = 5.594166667 1 I 2 I 3 I + 4.56 = 5.594166667 • Example 3: sin 87°65'43.21" = 0.999447513 (DEG mode) 87 I 65 I 43.21 I S 0.999447513 • Example 4: 1.23↔ 1°13'48" 1.23 I I I 1°13°48. 1.23 1°13°48. • Example 5: 12°34' ↔ 12.56666667 12 I 34 I A O 12.56666667 You can also use I when inputting values to convert between sexagesimal and decimal.
kTrigonometric/Inverse Trigonometric Functions • Example 1: sin ( 6 rad) (RAD mode) A x \ 6 = S RAD 0.5 - 12 - • Example 2: 1°2'3" + 4.56 = 5.594166667 1 I 2 I 3 I + 4.56 = 5.594166667 • Example 3: sin 87°65'43.21" = 0.999447513 (DEG mode) 87 I 65 I 43.21 I S 0.999447513 • Example 4: 1.23↔ 1°13'48" 1.23 I I I 1°13°48. 1.23 1°13°48. • Example 5: 12°34' ↔ 12.56666667 12 I 34 I A O 12.56666667 You can also use I when inputting values to convert between sexagesimal and decimal.
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kHyperbolic/Inverse Hyperbolic Functions • Example 1: sinh 3.6 3.6 M S 18.28545536 • Example 2: sinhҀ1 30 30 M A j 4.094622224 kCommon and Natural Logarithms, Exponents • Example 1: log 1.23 1.23 R 0.089905111 • Example 2: In 90 (҃loge 90) 90 T Iog 64 • Example 3: Iog 4 64 R \ 4 R = 4.49980967 3. • Example 4: 100.4ѿ5 eȕ3 .4 A Q + 5- 3E AU= 2.760821773 • Example 5: 23 2 w 3 = 8. • Example 6: 2ȕ3 2 w 3 E = 0.125 • Example 7: e10 10 A U 22026.46579 - 14 -
kHyperbolic/Inverse Hyperbolic Functions • Example 1: sinh 3.6 3.6 M S 18.28545536 • Example 2: sinhҀ1 30 30 M A j 4.094622224 kCommon and Natural Logarithms, Exponents • Example 1: log 1.23 1.23 R 0.089905111 • Example 2: In 90 (҃loge 90) 90 T Iog 64 • Example 3: Iog 4 64 R \ 4 R = 4.49980967 3. • Example 4: 100.4ѿ5 eȕ3 .4 A Q + 5- 3E AU= 2.760821773 • Example 5: 23 2 w 3 = 8. • Example 6: 2ȕ3 2 w 3 E = 0.125 • Example 7: e10 10 A U 22026.46579 - 14 -
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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; 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 -
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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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... mathematical operation (such as an attempt to clear only the last calculation performed. • To change the operator key w, As, etc.) you pressed. • In a series of calculations, press k while an intermediate result is displayed to calculate o and σn while n ҃ 0) is performed....; To clear any of the above conditions, press t and perform the calculation from the beginning. - 26 - a. kOverflow or Error Check The following conditions make further calculation impossible. When function calculations are used , but the operation retains the order of precedence of the ...
... mathematical operation (such as an attempt to clear only the last calculation performed. • To change the operator key w, As, etc.) you pressed. • In a series of calculations, press k while an intermediate result is displayed to calculate o and σn while n ҃ 0) is performed....; To clear any of the above conditions, press t and perform the calculation from the beginning. - 26 - a. kOverflow or Error Check The following conditions make further calculation impossible. When function calculations are used , but the operation retains the order of precedence of the ...
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...prior to provide power. • If available light is too low, the display may become dim, calculation functions may become impossible, or the contents of the independent memory may be restored by a solar cell that point. • No error occurs when the result is within the range of ѿ(1҂...display darkens under poor light and cannot be lost. • In the case of condition e, you can continue with more light. • fx-85B/fx-280 This calculator is powered by the CASIO TWO- kPower Supply • fx-82SOLAR/fx-260SOLAR This calculator is powered by pressing 5. - 27 -
...prior to provide power. • If available light is too low, the display may become dim, calculation functions may become impossible, or the contents of the independent memory may be restored by a solar cell that point. • No error occurs when the result is within the range of ѿ(1҂...display darkens under poor light and cannot be lost. • In the case of condition e, you can continue with more light. • fx-85B/fx-280 This calculator is powered by the CASIO TWO- kPower Supply • fx-82SOLAR/fx-260SOLAR This calculator is powered by pressing 5. - 27 -
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... are performed from left to turn power on the next page shows register contents following the above input. - 29 - Functions 2. kOrder of Operations and Levels Operations are six reg- 1 6 isters, so calculations up to six levels can be stored. • Each level can contain up to three open parentheses, so parentheses can...
... are performed from left to turn power on the next page shows register contents following the above input. - 29 - Functions 2. kOrder of Operations and Levels Operations are six reg- 1 6 isters, so calculations up to six levels can be stored. • Each level can contain up to three open parentheses, so parentheses can...
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kSpecifications Power Supply : fx-82SOLAR/fx-260SOLAR : Solar cell fx-85B/fx-280 : CASIO TWO-WAY POWER System: solar cell plus one G13 Type (SR44 or LR44) batter y Battery Life (fx-85B/fx-280) : Approximately 3 years (1 hour use per day) on LR44/SR44 battery Input Ranges : Functions Input Range sinx cosx tanx (DEG) ȊxȊ9҂109 (RAD) ȊxȊ...
kSpecifications Power Supply : fx-82SOLAR/fx-260SOLAR : Solar cell fx-85B/fx-280 : CASIO TWO-WAY POWER System: solar cell plus one G13 Type (SR44 or LR44) batter y Battery Life (fx-85B/fx-280) : Approximately 3 years (1 hour use per day) on LR44/SR44 battery Input Ranges : Functions Input Range sinx cosx tanx (DEG) ȊxȊ9҂109 (RAD) ȊxȊ...
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Functions Input Range tanh-1x ȊxȊ 1 logx/lnx 1҂ 10-99 ͨ x 1 ҂ 10100 10x -1҂ 10100 x 100 ex -1҂ 10100 ...
Functions Input Range tanh-1x ȊxȊ 1 logx/lnx 1҂ 10-99 ͨ x 1 ҂ 10100 10x -1҂ 10100 x 100 ex -1҂ 10100 ...
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...log ȊxȊ100 x 0:y ≠ 0 -1҂101001/y log x 100 x ҃ 0: y 0 x1/y x 0: y҃ 2nѿ1; 1 n (n ≠ 0; Functions Input Range x 0: -1҂10100 y log x 100 x ҃ 0: y 0 xy x 0: y ҃ n; 1 2nѿ1 (n is an integer) However: -1҂10100...141; 1҂10100 n , o : n ≠ 0 n -1 : n ≠ 0, 1 • Errors are cumulative with such internal continuous calculations as xy, x1/y, x!, and 3 x, so accuracy may be adversely affected. - 34 -
...log ȊxȊ100 x 0:y ≠ 0 -1҂101001/y log x 100 x ҃ 0: y 0 x1/y x 0: y҃ 2nѿ1; 1 n (n ≠ 0; Functions Input Range x 0: -1҂10100 y log x 100 x ҃ 0: y 0 xy x 0: y ҃ n; 1 2nѿ1 (n is an integer) However: -1҂10100...141; 1҂10100 n , o : n ≠ 0 n -1 : n ≠ 0, 1 • Errors are cumulative with such internal continuous calculations as xy, x1/y, x!, and 3 x, so accuracy may be adversely affected. - 34 -