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Casio fx-100W, fx-115W, fx-570W, fx-991W Two-lineDisplay, Complex Number Calculations, You can simultaneously check the calculation formula and its answer, (CMPLX Mode), Formula Memory, Specifications

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Statistical Calculations ..................................	19
kStandard Deviation (SD Mode) ............................	19
kProbability Distribution Calculations ...................	20
kRegression Calculations (REG Mode) .................	21
Complex Number Calculations
(CMPLX Mode) ...............................................	23
kAbsolute Value/Argument Calculation ..................	24
Formula Memory ............................................	24
Metric Conversions (fx-570W/ fx-991W ) .......	25
Scientific Constants (fx-570W/ fx-991W) ......	26
Base-nCalculations ......................................	28
Integration Calculations .................................	30
Degrees, Minutes, Seconds Calculations ....	30
Technical Information.....................................	31
kWhen you have a problem...... .............................	31
kError Messages ...................................................	31
kOrder of Operations .............................................	32
kStacks ..................................................................	33
kPower Supply .......................................................	34
kInput Ranges .......................................................	37
Specifications ................................................	39

Two-line Display

You can simultaneously check the calculation formula and its answer.

The first line displays the calculation formula. The second line displays the answer.

E-5

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