Casio fx-CG50 Getting Started - Page 10

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Also for Casio fx-CG50: Quick Start Manual (3 pages), Manual (4 pages), Setting-Up Manual (12 pages), Setting-Up Manual (12 pages), Hardware User's Manual (18 pages), Quick Start Manual (4 pages), Instructions Manual (7 pages)

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Equations [Option A]

Simultaneous linear equations

The equation has to be entered in the form

similarly for more unknowns. Don't forget to rearrange your equation if it is not in this form.

Feature

Useful for...

Find the solutions of the

equations.

Hint: If the lines (2 unknowns) or

planes (3 unknowns) are parallel,

the calculator will show 'No

Solution'. If the lines or planes

are coincident (lie on each other)

it will show 'Infinite Solutions').

Polynomial equations

The equations must be in the form

Remember to rearrange your equation if necessary.

Feature

Useful for...

Find the solutions of the

equations.

Hint 1: If the equation does not

have one of the terms, enter 0

for the coefficient e.g. for



Hint 2: If the display shows 'No

Real Solutions' or a solution such

 i

, see below.

3 2

Page | 10

ax by c



 

bx c

 

4 0

enter





(2 unknowns) or

Steps / key presses

From the EQUATION

menu, press q to

choose the

menu,

then choose the number

of unknowns.

Press q

for quadratics and

Steps / key presses

From the EQUATION

menu press w to

choose the

then the degree (e.g. 2

for quadratics, 3 for

cubics).

Enter the coefficients of

your equations.

Press q





(3 unknowns), and

ax by cz d

Screen

Notice that the exact value is given

on the bottom right



 

cx d

Screen

Notice that the exact value is given

on the bottom right

for cubics.