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#918 Maxima doesn't know much about increasing / decreasing fcns

open
nobody
5
2012-11-18
2006-05-07
Robert Dodier
No

Maxima can't do much w/ functions declared to be
increasing, and can't do anything with functions
declared decreasing.

declare (F, increasing, G, decreasing);
is (F(2) > F(1)); => "unable to evaluate the predicate"
is (G(1) > G(2)); => "unable to evaluate the predicate"
assume (xx > yy);
is (F(xx) > F(yy)); => true (OK)
is (G(yy) > G(xx)); => "unable to evaluate the predicate"

Maxima 5.9.3cvs

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