Casio CLASSWIZ CG Software User's Manual page 117

• In the "Upper=" and "Lower=" lines, input the upper and lower limits of the desired solution, if necessary.
7. Press >. Or select
• This displays the calculation results on the Result tab.
• "Lft=" and "Rgt=" are the calculated results of the left side
and right side with the obtained result.
Note
• x and X are treated as the same variable.
• If you input an expression without "=" in the "Eq" line in step 3, "expression = 0" is assumed.
• Functions registered with the Graph&Table app can be input into the "Eq" line. Select T > [Recall],
highlight the function you want to enter, and then press O.
• Solver uses Newton's method of approximation to find solutions. "Lft=" and "Rgt=" values are displayed
because calculation using Newton's method may produce an error with respect to the true solution.
The closer the difference between the values of "Lft=" and "Rgt=" gets to 0, the smaller the error in the
calculation results.
• The button appears on the display when the calculator judges that convergence is not
sufficient for the displayed results.
• Solver obtains only one solution. For information about obtaining multiple solutions of a higher-order
equation (such as ax
14E0E
and then press O.
2
+bx+c=0), see "Solving Higher-Order Equations" (page
*
2E9.8E
* The value to be solved for is the initial estimate
value. Here, the initial estimated value is 0.
117
115).