Casio fx-115ES PLUS - Page 9

fx-115ES PLUS 2nd Edition Quick Start Guide
9
EQN MODE
Example 1:
1. Press 1 to select a simultaneous linear equation
with two unknowns.
2.Enterthecoefcientsforeachtermineachequation
by pressing 1=2=3=2=3=4=.
3. Press = to solve for the variables.
4.PressR to see the solution for y.
5. To solve additional simultaneous equations with
two unknowns, press CC.
Equation Mode can be used to solve simultaneous linear equations with two or three unknowns,
quadratic equations, or cubic equations. Press w5 to enter EQN mode and press the
corresponding number for the desired equation type.