9-2-2

Using Numeric Solver

(6) Tap 1, or tap [Solve] and then [Execute] on the Numeric Solver menu.

•The [Left–Right] value shows the difference between the left side and right side results.

Tip

•Numeric Solver solves functions by calculating approximations based on Newton’s method. This means that solutions may include errors that are not actual solutions. The accuracy of solutions can be determined by viewing the [Left–Right] value. The closer the [Left–Right] value is to zero, the more accurate the results.

•If ClassPad judges that the displayed results are not converging sufficiently, it displays the message “Did not converge. Do you wish to continue a calculation?” Tap [Yes] to continue, or [No] to cancel the calculation.

Example: Solve the equation 86 = 56.01205897 log(61− x)

•In this example, the initial convergence value is 1E−13. This is the default setting of the ClassPad unit.

uClassPad Operation

(1)Tap mto display the application menu, and then tap N.

(2)k9

(3)Input the equation as written, then tap w.

86=56.0bc05897l6b-X)w

•The variable x is automatically selected because it is the only variable in the equation.

(4)Tap 1, or tap [Solve] and then [Execute] on the Numeric Solver menu.

•This completes the procedure. If the software is unable to converge to a solution, steps (5) through (8) apply.

(5)The error message appears.

Tap [OK].

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