Updates:
Status: Fixed
Comment #10 on issue 3322 by smi...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
Thanks for reporting this, Andreas. This works now.
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Updates:
Labels: NeedsReview smichr
Comment #9 on issue 3322 by smi...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
There is a fix at 1409 -- the failure of -(-1)**(1/4)*I to combine into
-(-1)**(3/4) is reason enough not to tweak as_base_exp. Tests a
Comment #8 on issue 3322 by andreas.kloeck...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
should've said in comment 6: does *not* try to compute (-1)**(3/2).
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Comment #7 on issue 3322 by andreas.kloeck...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
(Which, btw, would also already have been a fix for issue 3262.)
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Comment #6 on issue 3322 by andreas.kloeck...@gmail.com: 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
Comment #5 on issue 3322 by asmeu...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
No, the test failure I'm taling about is related to cse. See the
test_issue_3022 in test_expand.py.
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Comment #4 on issue 3322 by andreas.kloeck...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
Not sure how related issue 3022 is, as it is about expand().
There is however an eerie similarity with
http://code.google.com/p/sympy/issues/detail?id=3262#c2
Mul._eval
Comment #3 on issue 3322 by asmeu...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
The problems with the test failure in master related to issue 3022 are also
related to cse() and I, so perhaps these should both be investigated
together.
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Comment #2 on issue 3322 by andreas.kloeck...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
Even simpler:
---
import sympy as sp
from sympy import I
z = - 2*I
x0 = sp.Symbol("x0")
two_i = 2*I
print z._subs(t
Comment #1 on issue 3322 by andreas.kloeck...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
Reduced to bug in subs:
---
import sympy as sp
from sympy import exp, I
z = exp(2*I) - 2*I
print z.subs({2*I: sp.Sy
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 3322 by andreas.kloeck...@gmail.com: Another CSE bug
http://code.google.com/p/sympy/issues/detail?id=3322
Hi there,
the following program:
-
import sympy as sp
from sympy impor
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