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Solving And Integrating Programs; Solving A Program - HP 35s User Manual

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Solving and Integrating Programs

Solving a Program

In chapter 7 you saw how you can enter an equation — it's added to the equation
list — and then solve it for any variable. You can also enter a program that
calculates a function, and then solve it for any variable. This is especially useful if
the equation you're solving changes for certain conditions or if it requires repeated
calculations.
To solve a programmed function:
1. Enter a program that defines the function. (See "To write a program for SOLVE"
below.)
2. Select the program to solve: press
you're re–solving the same program.)
3. Solve for the unknown variable: press
Notice that FN= is required if you're solving a programmed function, but not if
you're solving an equation from the equation list.
To halt a calculation, press
appear in line 2. The current best estimate of the root is in the unknown variable;
 
use
press
.
To write a program for SOLVE:
The program can use equations and ALG or RPN operations — in whatever
combination is most convenient.
or
to view it without disturbing the stack. To resume the calculation,
 
label. (You can skip this step if


and the message  will
Solving and Integrating Programs
15
variable.
15-1

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