Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 2876 by [email protected]: factor breaks power rules
http://code.google.com/p/sympy/issues/detail?id=2876
I've found that factor is pulling a minus sign out from radicals and this
is not always valid:
>>> factor(sqrt(-x))
I*sqrt(x)
If `x == 1` the unfactored form gives I and all is ok, but if `x == -1`
then the unfactored form gives 1 whereas the factored form gives `I*I` ==
-1.
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