HP HP-32S - Examples Using SOLVE

3. Enter the instructions to evaluate the function. Use a RCL in
struction any place a variable's value is neededfor a calculation.
4. End the program with a RTN. The program shouldend with the
value of the function in the X-register.
Each time that SOLVE executes your program (which could be many
times), the value of the unknown variable changes, as does the value
your program produces. When your program returns a zero, then a
solution has been found for the unknown variable.
Examples Using SOLVE
Example: Solving for the Dimensions of a Box. Use the following
program to evaluate the dimensions of a box (L x Wx H — V). Note
that the program uses
recall arithmetic, whichtakesless memory than
recalling a variable and doing arithmetic as separate operations.
B81 LBL B
B02 INPUT L
B83 INPUT W
B04 INPUT H
B05 INPUT y
B06 RCL L
B07 RCL* W
B08 RCLx H
B09 RCL- V
B10 RTN
First enter the program labeled B:
Keys: Display: Description:
HI prgm I Starts program entry.
(IfGTQl QQ PRGM TOP Goes to the top of
memory (if necessary).
7: Solving for an Unknown Variable in an Equation 113