Updates:
Summary: Investigate how to employ complexity measures in functions like
trigsimp(), etc.
Comment #1 on issue 2792 by asmeu...@gmail.com: Investigate how to employ
complexity measures in functions like trigsimp(), etc.
http://code.google.com/p/sympy/issues/detail?id=2792
OK, now I understand your idea. I don't know if this is the best idea, at
least for certain simplification functions. I expect a function like
cancel() (for example) to always perform its function regardless of
the "simplicity" of the result. trigsimp() could perhaps be an exception
because there are various ways to simplify trigonometric functions (see
also 2773). I think powsimp() rather falls into the category of cancel()
in this case.
But you can look at how to make things like rewrite() use this. Actually,
there should be a separate research task on how to improve the rewrite
framework.
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