HP 35s HP 35s scientific calculator - User Guide - Page 213
A Nested Subroutine., subroutine a nested subroutine, labeled Q, to do the repetitive squaring
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MAIN program (Top level) End of program Attempting to execute a subroutine nested more than 20 levels deep causes an error. Example: A Nested Subroutine. The following subroutine, labeled S, calculates the value of the expression a2 + b2 + c2 + d2 as part of a larger calculation in a larger program. The subroutine calls upon another subroutine (a nested subroutine), labeled Q, to do the repetitive squaring and addition. This saves memory by keeping the program shorter than it would be without the subroutine. Programming Techniques 14-3
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Programming Techniques
14-3
MAIN program
(Top level)
End of program
Attempting to execute a subroutine nested more than 20 levels deep causes an
error.
Example:
A Nested Subroutine.
The following subroutine, labeled S, calculates the value of the expression
as part of a larger calculation in a larger program. The subroutine calls upon
another
subroutine (a nested subroutine), labeled Q, to do the repetitive squaring
and addition. This saves memory by keeping the program shorter than it would be
without the subroutine.
2
2
2
2
d
c
b
a
+
+
+