Status: Valid
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Labels: Type-Defect Priority-Medium
New issue 3819 by abro...@verizon.net: trigsimp gives bad results for
non-commutative symbols
http://code.google.com/p/sympy/issues/detail?id=3819
Consider the following code -
from sympy import symbols, trigsimp, sin, cos
Updates:
Labels: Simplify WrongResult
Comment #1 on issue 3819 by asmeu...@gmail.com: trigsimp gives bad results
for non-commutative symbols
http://code.google.com/p/sympy/issues/detail?id=3819
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Comment #2 on issue 3819 by smi...@gmail.com: trigsimp gives bad results
for non-commutative symbols
http://code.google.com/p/sympy/issues/detail?id=3819
Haven't figured it out but to give a simpler failing expression:
A is noncommutative
trigsimp(-sin(th)**2*A - sin(2*th)*A/2)
Comment #3 on issue 3819 by smi...@gmail.com: trigsimp gives bad results
for non-commutative symbols
http://code.google.com/p/sympy/issues/detail?id=3819
I put a debug statement in strategies debug function and nothing in the
trigsimp sequence generates an error -- all the Trues are
