Comment #6 on issue 3322 by [email protected]: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
My issue along with 3022 is fixed by changing this in ImaginaryUnit:
def as_base_exp(self):
- return S.NegativeOne, S.Half
+ return S.ImaginaryUnit, S.One
This does make some simplify tests inconsistent with their prescribed
results. Haven't dug deeper if there's a real problem, though. This seems
like a clean way of getting to a situation where the code tries to compute
(-1)**(3/2).
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