user manual

Applications 11-5

5. Press

and

move the cursor close to the left root.

The variables X and Y are updated as you move the cursor.

6. From a blank line on the Home screen, execute the

program

NEWTON

7. Enter

as the initial guess, and press

repeatedly.

The program stops when the relative difference between

the new root estimate and the previous root estimate is

less than X

10.

8. When program execution is complete, evaluate the

function at the estimated root.

Repeat the steps in this procedure to find the other root.