Updates:
Status: Started
Comment #5 on issue 1240 by [email protected]: sin(atan(x)) and
cos(atan(x)) are not simplified
http://code.google.com/p/sympy/issues/detail?id=1240
Attached patch add support for cos(asin(x)), cos(acot(x)), sin(acos(x)) and
sin(acot(x)). There are probably a few
more identities lurking around although sec/csc classes would be needed
first.
It might be worth, in the future using a dictionary to perform such a
substitution (so for sin we might have {
acos : sqrt(1 - x**2), ... }) to simplify the code a bit.
Attachments:
0001-Add-support-for-simplifying-asin-acos-acot-when-pass.patch 2.3 KB
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