Updates:
Labels: WrongResult Milestone-Release0.7.3
Comment #3 on issue 3698 by asmeu...@gmail.com: Piecewise does solving with
subs
http://code.google.com/p/sympy/issues/detail?id=3698
To really do this correctly, we need to know when solve knows it has all
the solutions.
I'm going to go ahead and mark this as WrongResult, because it's easy to
find examples where this is wrong if you have a function that solve can't
solve. Here's one:
In [13]: Piecewise((1, Eq(z, 0)), (0, True)).subs(z, sin(x))
Out[13]:
⎧1 for x = 0
⎨
⎩0 otherwise
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