Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 3120 by [email protected]: powers of noncommutative Mul
http://code.google.com/p/sympy/issues/detail?id=3120
In [1]: from sympy import *
In [2]: A,B=symbols('A B', commutative=False)
In [3]: expand((A*B)**2)
Out[3]: A**2*B**2
In [4]: expand((A*B/A)**2)
Out[4]: A**2*B**2*A**(-2)
Expected[3]: A*B*A*B
Expected[4]: A*B*B/A
This is with latest master. It seems that it should be fixed by the fix to
issue 1261, but when I checkout ddc6c37888fa25b98797ce27fdef7ce37bceb0b2 I
get the same bad result as above (with a small difference in printing /A**2
instead of A**(-2)). So I have a feeling that this has never worked
properly.
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