fx-95MS/fx-500MS/
(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
- ▶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
- ▶Rectangular-Polar Coordinate Conversion
- ▶Factorial (!)
- ▶Random Number (Ran#)
- ▶Permutation (nPr) and Combination (nCr)
- ▶Rounding function (Rnd)
Using Calculation Modes
Technical Information
Equation Calculations (EQN)
Simultaneous Equations
Simultaneous Linear Equations with Two Unknowns:
a1x + b1y = c1
a2x + b2y = c2
Simultaneous Linear Equations with Three Unknowns:
a1x + b1y + c1z = d1
a2x + b2y + c2z = d2
a3x + b3y + c3z = d3
Entering the EQN Mode displays the initial simultaneous equation screen.
Use this screen to specify 2 or 3 as the number of unknowns, and input values for each of the coefficients.
(1) Coefficient name
(2) Element value
(3) Arrow indicates direction you should scroll to view other elements.
Any time until you input a value for the final coefficient (c2 for two unknowns, d3 for three unknowns), you can use the and keys to move between coefficients on the screen and make changes, if you want.
Note that you cannot input complex numbers for coefficients.
Calculation starts and one of the solutions appears as soon as you input a value for the final coefficient.
(1) Variable name
(2) Solution
(3) Arrow indicates direction you should scroll to view other solutions.
Press the key to view other solutions. Use and to scroll between all of the solutions for the equation.
Pressing the key at this point returns to the coefficient input screen.
Example: To solve the following simultaneous equations
2x + 3y - z = 15
3x - 2y + 2z = 4
5x + 3y - 4z = 9 (x = 2, y = 5, z = 4)
(Unknowns?) | 3 |
---|---|
(a1?) …. (d1?) | 2 3 1 15 |
(a2?) …. (d2?) | 3 2 2 4 |
(a3?) …. (d3?) | 5 3 4 9 |
(x = 2) | |
(y = 5) | |
(z = 4) |