Comment #5 on issue 3204 by [email protected]: Simplifying of the sum of
tan(x) and cot(x)**-1.
http://code.google.com/p/sympy/issues/detail?id=3204
This is waithing review at PR 1737 (
https://github.com/sympy/sympy/pull/1737 )
trigsimp(3*tan(x)**7 - 2/cot(x)**7, method='fu')
tan(x)**7
trigsimp(3*tan(x)**7 - 2/cot(x)**7, method='futrig')
tan(x)**7
trigsimp(3*tanh(x)**7 - 2/coth(x)**7, method='futrig')
tanh(x)**7
(Actually, with futrig you are guaranteed to always get the same hyperbolic
transformations as for the trig functions because the Osborne
transformation is used to replace hyperbolics with trig equivalents.)
Other than replacing all of trigsimp with a call to futrig, I don't plan to
make any modifications to trigsimp.
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