Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 3398 by tyo...@fandm.edu: sympy.conjugate is unreliable
http://code.google.com/p/sympy/issues/detail?id=3398
A simple example of the defect is
x = Symbol('x',real=True)
sympy.conjugate( I*(-1)**x ) != sympy.conjugate( sympy.simplify(
I*(-1)**x ) )
This is because sympy.simplify turns I*(-1)**x into (-1)**(x+1/2). Then
sympy.conjugate applied to this gives the same; it doesn't notice the
(-1)**(1/2). Other examples of not conjugating (-1)**(1/2) can be given.
The fact that sympy.simplify sets up the faulty sympy.conjugate is
worrisome.
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