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Casio
fx-100W, fx-115W, fx-570W, fx-991W
CASIO COMPUTER CO., LTD, 6-2, Hon-machi 1-chome, Shibuya-ku,Tokyo 151-8543,Japan
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43 pages, 411.47 Kb
CASIO COMPUTER CO., LTD.
6-2,
Hon-machi
1-chome
Shibuya-ku,
Tokyo
151-8543,
Japan
SA9810-C
Printed in China
U.S. Pat. 4,410.956
Imprimé en Chine
HA310540-1
Contents
Page
ENGLISH
Removing and Replacing the Calculator’s Cover
Safety Precautions
Disposing of the Calculator
Handling Precautions
•Avoid use and storage in areas subjected to tempera- ture extremes
Avoid use and storage in areas subjected to large amounts of humidity and dust
•Never drop the calculator or otherwise subject it to strong impact
•Never twist or bend the calculator
•Never try to take the calculator apart
Contents
Two-lineDisplay
Key Layout
<fx-991W
fx-115W:
E-7
Before Starting Calculations
kModes
kInput Capacity
kMaking Corrections During Input
kReplay Function
kError Locator
kExponential Display Formats
F FF F3
kAnswer Memory
Basic Calculations
Memory Calculations
kIndependent Memory
kVariables
AC
Fraction Calculations
kFraction Calculations
kDecimal-to-FractionConversion
kFraction-to-DecimalConversion
Percentage Calculations
Av+
Av
Scientific Function Calculations
kTrigonometric/Inverse Trigonometric
Functions
qqq 1→“ R ”
qqq 2→“ T ”
kAngle Unit Conversion
FFF1 → “ R ”
4.25Av 2(R)
kCommon and Natural Logarithms
Antilogarithms
kFIX, SCI, RND
FFF F13
FFFF
FFFF2 21 \3
FFFF31
kENG Calculations
kInputting ENG Calculation Symbols
FFF FF2
F FFFF
kCoordinate Conversion (Pol(x, y), Rec (r, θ))
AF 2 P60 T
Af1 P L3 T
kPermutation
kCombination
Statistical Calculations
kStandard Deviation (SD Mode)
Am
σn-1
kProbability Distribution Calculations
kRegression Calculations (REG Mode)
Σx2
qq 2
Complex Number Calculations (CMPLX Mode)
R2 +3 iT+
R4 +5 iT
kAbsolute Value/Argument Calculation
A AR 3 +4 iT
Formula Memory
pypu pxK +
Metric Conversions (fx-570W/fx-991W)
31 A c CONV
Scientific Constants (fx-570W/fx-991W)
• Scientific Constant Table
E-27
Base-n Calculations
lll4(o) 76548
lll1
lll3
Integration Calculations
d 2 p xK +3 px+
Degrees, Minutes, Seconds Calculations
Technical Information
kWhen you have a problem
kError Messages
kOrder of Operations
kStacks
kPower Supply
< fx-570W
This calculator is powered by single G13 Type (LR44) button battery
• To replace the battery
1Press ito turn power off
3Remove the old battery
5Replace the battery cover and secure it in place with the two screws
7Press Lto turn power on
• Auto Power Off
kInput Ranges
nCr
Specifications
Page
CASIO COMPUTER CO., LTD
6-2, Hon-machi 1-chome
Shibuya-ku,Tokyo 151-8543,Japan