19990401
4-3-1
Solve Calculations
4-3 Solve Calculations
Description
The Solve Calculation Mode lets you determine the value of any variable in a formula without
having to solve the equation.
Set Up
1. From the Main Menu, enter the EQUA Mode.
Execution
2. Select the SOLV (Solver) Mode, and input the equation as it is written.
If you do not input an equals sign, the calculator assumes that the expression is to the
left of the equals sign, and there is a zero to the right. *
1
3. In the table of variables that appears on the display, input values for each variable.
You can also specify values for Upper and Lower to define the upper and lower limits of
the range of solutions. *
2
4. Select the variable for which you want to solve to obtain the solution.
“Lft” and “Rgt” indicate the left and right sides that are calculated using the solution.*
3
*
1
An error occurs if you input more than one equals
sign.
*
2
An error occurs if the solution falls outside the
range you specify.
*
3
Solutions are approximated using Newton’s
method. Lft and Rgt values are displayed for
confirmation, because Newton’s method may
produce results that are the real solution.
The closer the difference between the Lft and
Rgt values is to zero, the lower degree of error
in the result.
# The message “Retry” appears on the display
when the calculator judges that convergence is
not sufficient for the displayed results.
20011101
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