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Status: Duplicate
Labels: -EasyToFix
Mergedinto: 2440
Comment #7 on issue 3743 by smi...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
dummy_eq should not be used for comparing things with structural dummy
variables; th
Comment #6 on issue 3743 by asmeu...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
What's wrong with atoms(Symbol)?
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Comment #5 on issue 3743 by smi...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
I think this will work
def dummy_eq(self, other):
"""
Compare two expressions and handle dummy symbols.
Exam
Comment #4 on issue 3743 by asmeu...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
Is it because it is checking free_symbols instead of .atoms(Symbol)?
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Comment #3 on issue 3743 by smi...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
I think it originated with Polys (though I didn't check to history, I see
that it is used there a lot). Should we just leave it there and put a
function somewhere in tes
Comment #2 on issue 3743 by ronan.l...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
dummy_eq() should just be killed. There's absolutely no reason to have such
a method on Basic.
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Comment #1 on issue 3743 by julien.r...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
See also issue 2566.
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New issue 3743 by smi...@gmail.com: dummy_eq fails with Sum
http://code.google.com/p/sympy/issues/detail?id=3743
The dummy_eq fails for Sum. I suspect that it is using subs instead of
xreplace:
k_ = Dummy('k')
k_.dummy_eq(x)
Tru
