fx-100MS/fx-570MS/
fx-991MS/
(2nd edition / S-V.P.A.M.)
Before Using the Calculator
Calculation Modes and Calculator Setup
Basic Calculations
- ▶Inputting Expression and Values
- ▶Arithmetic Calculations
- ▶Fraction Calculations
- ▶Percent Calculations
- ▶Degree, Minute, Second (Sexagesimal) Calculations
- ▶Multi-Statements
- ▶Using Engineering Notation
- ▶Using Engineering Symbols
- ▶Calculation History and Replay
- ▶Using Memory Functions
Function Calculations
- ▶Pi (π), Natural Logarithm Base e
- ▶Trigonometric Functions, Inverse Trigonometric Functions
- ▶Hyperbolic Functions, Inverse Hyperbolic Functions
- ▶Angle Unit Conversion
- ▶Exponential Functions, Logarithmic Functions
- ▶Power Functions and Power Root Functions
- ▶Integration Calculations
- ▶Differential Calculations
- ▶Rectangular-Polar Coordinate Conversion
- ▶Factorial (!)
- ▶Random Number (Ran#)
- ▶Permutation (nPr) and Combination (nCr)
- ▶Rounding function (Rnd)
- ▶Using CALC
- ▶Using SOLVE
- ▶Scientific Constants (fx-570MS/fx-991MS only)
- ▶Metric Conversion (fx-570MS/fx-991MS only)
Using Calculation Modes
- ▶Complex Number Calculations (CMPLX)
- ▶Statistical Calculations (SD, REG)
- ▶Base-n Calculations (BASE)
- ▶Equation Calculations (EQN)
- ▶Matrix Calculations (MAT) (fx-570MS/fx-991MS only)
- ▶Vector Calculations (VCT) (fx-570MS/fx-991MS only)
Technical Information
Arithmetic Calculations
Negative values inside of calculations must be enclosed within parentheses. For details, see "Calculation Priority Sequence."
It is not necessary to enclose a negative exponent within parentheses.
sin 2.34 × 10-5 → 2345
Example 1: 23 + 4.5 - 53 = -25.5
- 234553
- -25.5
Example 2: 56 × (-12) ÷ (-2.5) = 268.8
- 561225
- 268.8
Example 3: 2 ÷ 3 × (1 × 1020) = 6.666666667 × 1019
- 23120
- 6.666666667×1019
Example 4: 7 × 8 - 4 × 5 = 36
- 7845
- 36.
Example 5: 64 × 5 = 0.3
- 645
- 0.3
Example 6: 2 × [7 + 6 × (5 + 4)] = 122
- 27654
- 122.
Number of Decimal Places and Number of Significant Digits
To change the settings for the number of decimal places, the number of significant digits, or the exponential display format, press the key a number of times until you reach the setup screen shown below.
Press the number key (, , or ) that corresponds to the setup item you want to change.
(Fix): Number of decimal places
(Sci): Number of significant digits
(Norm): Exponential display format
Example 1: 200 ÷ 7 × 14 =
- 200714
(Specifies three decimal places.)
- ・・・・・(Fix)
Press ・・・・・(Norm) to clear the Fix specification.
Example 2: 1 ÷ 3, displaying result with two significant digits (Sci 2)
- ・・・・・(Sci) 13
Press ・・・・・(Norm) to clear the Sci specification.
Omitting a Final Closed Parenthesis
Example: (2 + 3) × (4 - 1 = 15
- 2341
- 15.