EQUA

fx-9860GII TI-83

On a Casio calculator you can select equation mode

MENU A

and it is displayed with the icon

Explanation

Equation

Select Type
F1:Simultaneous
F2:Polynomial
F3:Solver

SIML Simultaneous linear equation
With 2 to 6 unknowns.

POLY Polynomial
Degree 2 to 6 equation.

SOLV Solve equations

Example 1

To solve the simultaneous linear equations with 5 unkowns enter all data

anX+bnY+∙∙∙+enU=fn

a b c d e f

1 1 1 1 1 1 1

2 16 8 4 2 1 2

3 81 27 9 3 1 4

4 256 64 16 4 1 8

5 625 125 25 5 1 16

16

SOLV DEL CLR EDIT

SOLV

≣

anX+bnY+∙∙∙+enU=fn

X 0.0416

Y -0.25

Z 0.9583

1

24

REPT

Be sure to select SET UP Input/Output Math.

SIML	Simultaneous linear equation With 2 to 6 unknowns.
POLY	Polynomial Degree 2 to 6 equation.
SOLV	Solve equations