modular exponentiation?

[Thomas Klemm]

(06-28-2018 09:40 PM)John Keith Wrote:  Also integer comparisons are very slow for some reason. About 20 seconds of that run time is taken by the < function.

You could probably just ditch the following:

Code:

IF DUP 0 <
THEN MODULO +
END

I have no HP 50g thus I can't verify my assumption.
But the final MODULO MOD should take care of possible negative values.