15-6
Solving and Integrating Programs
Using SOLVE in a Program
You can use the SOLVE operation as part of a program.
If appropriate, include or prompt for initial guesses (into the unknown variable and
into the X–register) before executing the SOLVE
variable
instruction. The two
instructions for solving an equation for an unknown variable appear in programs
as:
label
variable
The
programmed
SOLVE instruction does not produce a labeled display (
variable
=
value
) since this might not be the significant output for your program (that is, you
might want to do further calculations with this number before displaying it). If you
do
want this result displayed, add a VIEW
variable
instruction after the SOLVE
instruction.
If no solution is found for the unknown variable, then the next program line is
skipped (in accordance with the "Do if True" rule, explained in chapter 14). The
program should then handle the case of not finding a root, such as by choosing
new initial estimates or changing an input value.
Example:
SOLVE in a Program.
The following excerpt is from a program that allows you to solve for
x
or
y
by
pressing
X or Y.
Summary of Contents for 35s
Page 1: ...HP 35s scientific calculator user s guide H Edition 1 HP part number F2215AA 90001 ...
Page 14: ...12 Contents ...
Page 15: ...Part 1 Basic Operation ...
Page 16: ......
Page 46: ...1 30 Getting Started ...
Page 63: ...RPN The Automatic Memory Stack 2 17 A Solution ...
Page 64: ...2 18 RPN The Automatic Memory Stack ...
Page 74: ...3 10 Storing Data into Variables ...
Page 180: ...12 14 Statistical Operations ...
Page 181: ...Part 2 Programming ...
Page 182: ......
Page 246: ...15 12 Solving and Integrating Programs ...
Page 270: ...16 24 Statistics Programs ...
Page 284: ...17 14 Miscellaneous Programs and Equations ...
Page 285: ...Part 3 Appendixes and Reference ...
Page 286: ......
Page 308: ...B 8 User Memory and the Stack ...
Page 322: ...C 14 ALG Summary ...
Page 336: ...D 14 More about Solving ...
Page 346: ...E 10 More about Integration ...
Page 352: ...F 6 Messages ...
Page 370: ...G 18 Operation Index ...
Page 382: ...Index 12 ...