Casio fx-115ES PLUS Manuale di avvio rapido - Pagina 6

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Solving Equations (SOLVE):

SOLVE uses Newton's method to approximate the

solution of equations. SOLVE can only be used in COMP

mode.

Solve y = ax

+ b for x, when y = 0, a = 1, and b = -2.

1. Enter the equation by pressing Qn(Y)

Qr(=)Qz(A)Q)(X)d+Qx(B).

2. Press qr(SOLVE) to enter the SOLVE feature.

3. Enter the value for y by pressing 0=.

4. Enter the value for a by pressing 1=.

5. Enter the value of b by pressing z2=.

6. Enter an initial value for x, for this example, we will

enter 1, by pressing 1=.

7. To exit SOLVE, press C.

COMP MODE

fx-115ES PLUS 2nd Edition Quick Start Guide