Casio FX-9860GII SD User Manual download pdf (Page 13)

Getting Started with the fx-9860GII

EQUATION

This section is an overview of the EQUATION Icon. To select this icon, highlight it and press l

or press f.

The initial Equation Editor screen has three modes to choose from, Simultaneous, Polynomial,

and Solver; this section will give an overview of each mode.

The Simultaneous mode allows you to solve simultaneous linear equations that contain two to

six unknowns.

1. Solve the following system of equations:



Press q to select the Simultaneous mode and press w for three unknowns. The calculator

will display a matrix where the coefcients and constants can be entered in to as long as each

equation is in standard form. To enter this system of equations (already in standard form) input

the following:

 • 4 l 1 l n 2 l n 1 l

• 1 l 6 l 3 l 1 l

• n 5 l 4 l 1 l n 7 l

There are four options at the bottom of the screen, press q (SOLV). The solution to this system is (1,-1,2).



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Casio FX-9860GII SD User Manual Page 13