Casio FX-82SOLAR, FX260SOLARSCIH, FX-280, FX-85B, FX-260SOLAR User Manual
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fx-82SOLAR fx-85B fx-260SOLAR fx-280
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NQPOR
fx-82SOLAR/ fx-85B/fx-280 fx-260SOLAR
ENGLISH 1 DEUTSCH 110 ESPAÑOL 36 ITALIANO 147
FRANÇAIS 73
CASIO ELECTRONICS CO., LTD.
Unit 6, 1000 North Circular Road,
London NW2 7JD, U.K.
Contents
Handling Precautions … 2
Modes … 3
Basic Calculations … 5
Constant Calculations … 6
Memory Calculations … 7
Fraction Calculations … 9
Percentage Calculations … 10
Scientific Function Calculations … 11
Statistical Calculations (SD Mode) … 18
Technical Information … 21
— 1 —
Handling Precautions
•Your calculator is made up of precision components. Never try to take it apart.
•Avoid dropping your calculator and otherwise subjecting it to strong impact.
•Do not store the calculator or leave it in areas exposed to high temperature or humidity, or large amounts of dust. When exposed to low temperatures, the calculator may require more time to display results and may even fail to operate. Correct operation will resume once the calculator is brought back to normal temperature.
•The display will go blank and keys will not operate during calculations.When you are operating the keyboard, be sure to watch the display to make sure that all your key operations are being performed correctly.
•Never leave the dead battery (fx-85B/fx-280) in the battery compartment. It can leak and damage the unit.
•Avoid using volatile liquids such as thinner or benzine to clean the unit. Wipe it with a soft cloth, or with a cloth that has been dipped in a solution of water and a neutral detergent and wring out.
•In no event will the manufacturer and its suppliers be liable to you or any other person for any damages, expenses, lost profits, lost savings, or any other damages arising out of malfunction, repairs, or battery replacement (fx-85B/fx- 280), or insufficient light. The user should prepare physical records of data to protect against such data loss.
•Never dispose of battery (fx-85B/fx-280), the liquid crystal panel, or other components by burning them.
•Before assuming malfunction of the unit, be sure to care-
—2 —
fully reread this manual and ensure that the problem is not due to low battery power (fx-85B/fx-280) or operational error.
•The contents of this manual are subject to change without notice.
•No part of this manual may be reproduced in any form without the express written consent of the manufacturer.
•Keep this manual on hand for future reference.
Modes
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Standard deviation calculations |
Fl |
SD |
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Normal calculations |
F0 |
COMP |
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Calculations using degrees |
F4 |
DEG |
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Calculations using radians |
F5 |
RAD |
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Calculations using grads |
F6 |
GRA |
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Number of decimal place |
F7 |
FIX |
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specification |
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Number of significant digit |
F8 |
SCI |
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Cancels FIX and SCI settings |
F9 |
NORM |
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*Display indicators show current mode setting. Absence of display indicator indicates COMP Mode.
—3 —
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 —
Basic Calculations
•Use the COMP mode for basic calculations.
•Example 1: 23 4.5 53
23 + 4.5 ,53 |
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–25.5 |
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• Example 2: 56 ( 12) ( 2.5) |
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56 -12 E\2.5 E = |
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268.8 |
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• Example 3: 2 3 (1 1020) |
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2 \3 -1 e20 |
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6.66666666719 |
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• Example 4: 7 8 4 5=36 |
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7 -8 ,4 -5 |
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36. |
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• Example 5: |
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4 5 |
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4 -5 \6 AN = |
0.3 |
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• Example 6: 2 [7 6 (5 4)] 122 |
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2 -O7 +6 - |
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O 5 + 4 PP = |
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122. |
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•You can skip all Poperations before the =key.
—5 —
• Example 7: 4/3π53
4 \3 -Ax- 5 AN = 523.5987756
Constant Calculations
•Press +, ,, -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: 2.3 3, then 2.3 6
(2.3 3) |
2.3 ++3 |
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(2.3 6) |
6 |
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K 5.3
K 8.3
• Example 2: 12 2.3, then 12 ( 9)
(12 2.3) |
12 -- 2.3 = |
K |
27.6 |
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9 E= |
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(12 ( 9)) |
K |
–108. |
• Example 3: 17 17 17 17 68
(17 17)
(17 17 17)
(17 17 17 17)
17 ++ =
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K 34.
K 51.
K 68.
— 6 —
• Example 4: 1.74 8.3521
(1.72) |
1.7 - -= |
K |
2.89 |
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(1.73) |
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K |
4.913 |
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(1.74) |
K 8.3521 |
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Memory Calculations
•Use the COMP mode for memory calculations.
•Use AY, |, A{and Zfor memory calculations. AYreplaces current memory contents.
•“M” appears when there is a value in memory.
•To clear memory, press 0AYor tAY.
•Example 1: (53 6) (23 8) (56 2) (99 4) 210.75
(53 6) |
53 + 6 = AY |
M |
59. |
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23 ,8 |
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99 \4 |
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24.75 |
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(Memory recall) |
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M 210.75 |
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•Example 2: To calculate the following using memory as shown.
—7 —
M 13.
•Example 3: To calculate the following using memory and a constant: (12 3) (45 3) (78 3) 135.
(12 3)
(45 3)
(78 3)
(Memory recall)
3 --12 =AY
45 A{
78 |
Z
MK 36.
MK 135.
MK 234.
MK 135.
kAdditional fx-85B/fx-280 Memory Calculations
•The fx-85B/fx-280 has two additional memories named A and B.
•Use AJ to store data and 0to recall data.
•Storing data in a memory replaces anything stored there previously.
•To clear a memory, store a zero in it.
•Example 1: To input 123 in memory A.
t123 AJ 1 |
123. |
— 8 —
t0 1 |
123. |
• Example 2: To store the results of 123 456 in memory B.
t123 - 456 AJ 2 |
56088. |
t0 2 |
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56088. |
Fraction Calculations
•Use COMP mode for fraction calculations.
•Total number of digits (including division marks) cannot
exceed 10.
•Example 1:
•Example 2:
•Example 3:
•Example 4:
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1 C 2 +1.6 = |
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2.1 |
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Fraction/decimal calculation result is always decimal.
— 9 —
• Example 5: 12 ↔ 0.5(Fraction ↔Decimal)
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1 C2 = |
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0.5 |
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• Example 6: 1 |
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3 |
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1 C 2 C 3 |
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AB |
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AB |
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Percentage Calculations
•Use COMP mode for percentage calculations.
•Example 1: To calculate 12% of 1500.
1500 -12 Av |
180. |
• Example 2: To calculate what percentage of 880 is 660.
660 \880 Av |
75. |
• Example 3: To add 15% onto 2500. |
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2500 -15 Av+ |
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2875. |
— 10 —
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