Casio FX-115WA, FX-991WA manual

fx-115WA fx-991WA

User’s Guide

Contents

Page Removing and Replacing the Calculator’s Cover Safety Precautions Disposing of the Calculator Handling Precautions Page Contents Two-lineDisplay Key Layout Before Starting Calculations kModes kInput Capacity kMaking Corrections During Input kReplay Function kError Locator kExponential Display Formats F FF F3 kAnswer Memory Basic Calculations 3 -R 5 eD 9 T Memory Calculations kIndependent Memory kVariables Fraction Calculations kFraction Calculations kDecimal-to-FractionConversion kFraction-to-DecimalConversion Percentage Calculations Av+ Av Scientific Function Calculations kTrigonometric/Inverse Trigonometric Functions qqq1 →“ R ” qqq2 →“ T ” kAngle Unit Conversion FFF1 → “ R ” 4.25Av2(R) Av2 kCommon and Natural Logarithms kFIX, SCI, RND FFF F13 FFFF3 FFFF2 21 \3 FFFF31 kENG Calculations kInputting ENG Calculation Symbols FFFF F2 F FFFF kCoordinate Conversion (Pol(x, y), Rec (r, θ)) AF 2 P60 T kPermutation kCombination Statistical Calculations kStandard Deviation (SD Mode) Am AM o AA σn kProbability Distribution Calculations kRegression Calculations (REG Mode) Σx2 qq 2 Complex Number Calculations (CMPLX Mode) R2 +3 iT+ R 4 +5 iT kAbsolute Value/Argument Calculation A AR3 +4 i T Metric Conversions (fx-991WA) • Conversion Pair Table Scientific Constants (fx-991WA) Base-n Calculations lll4(o) 76548 lll1 lll3(b) Degrees, Minutes, Seconds Calculations Technical Information kWhen you have a problem kError Messages kOrder of Operations 4ab/c kStacks kPower Supply 5Press to turn power on. Be sure not to skip this step • Auto Power Off pens, press to turn power back on 32 kInput Ranges nCr Specifications 6-2, Hon-machi 1-chome Shibuya-ku,Tokyo 151-8543,Japan