Comment #18 on issue 2014 by asmeu...@gmail.com: use ordered_iter or
iterable instead of checking for literal container
http://code.google.com/p/sympy/issues/detail?id=2014
I grepped around and found a lot of "isinstance(stuff, list)" in the
codebase.
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Cc: ronan.l...@gmail.com
Comment #2 on issue 3880 by asmeu...@gmail.com: Test failure in hyperexpand
http://code.google.com/p/sympy/issues/detail?id=3880
The fact that there is a test there indicates that it used to work. From
0.7.2:
In [1]: hyperexpand(hyper([-S.Half, 1], [
Updates:
Status: Started
Comment #2 on issue 3881 by someb...@bluewin.ch: Test failure in finite_rv
http://code.google.com/p/sympy/issues/detail?id=3881
If yes, so please fix it. Thanks.
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Comment #1 on issue 3881 by mrock...@gmail.com: Test failure in finite_rv
http://code.google.com/p/sympy/issues/detail?id=3881
Looks like `simplify(skewness(X) - (1-2*p)/sqrt(n*p*(1-p))) == 0` works
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Comment #1 on issue 3880 by someb...@bluewin.ch: Test failure in hyperexpand
http://code.google.com/p/sympy/issues/detail?id=3880
It seems that the following subtest fails:
In [6]: hyper([-S.Half, 1], [2,2], z)
Out[6]: hyper((-1/2, 1), (2, 2), z)
where hyperexpand can not do it:
In [7]: hyper
Status: Valid
Owner:
Labels: Type-Defect Priority-Medium Statistics
New issue 3881 by someb...@bluewin.ch: Test failure in finite_rv
http://code.google.com/p/sympy/issues/detail?id=3881
The slow test in test_finite_rv.py fail with:
sympy/stats/tests/test_finite_rv.py:test_binomial_symbolic
Status: Valid
Owner:
Labels: Type-Defect Priority-Medium Simplify
New issue 3880 by someb...@bluewin.ch: Test failure in hyperexpand
http://code.google.com/p/sympy/issues/detail?id=3880
The slow test "prudnikov_8" produces a test failure:
In sympy/simplify/tests/test_hyperexpand.py:test_pr
Status: Valid
Owner:
Labels: Type-Defect Priority-Medium Milestone-Release0.7.3 Plotting Geometry
New issue 3879 by asmeu...@gmail.com: Ellipse uses pyglet plotting
http://code.google.com/p/sympy/issues/detail?id=3879
_
Comment #2 on issue 3877 by asmeu...@gmail.com: subs should recognize
powers with exponent 1
http://code.google.com/p/sympy/issues/detail?id=3877
Instead of creating a dummy Pow, just call Pow._eval_subs.
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Comment #1 on issue 3877 by smi...@gmail.com: subs should recognize powers
with exponent 1
http://code.google.com/p/sympy/issues/detail?id=3877
def _eval_subs(self, old, new):
... if old == self:
... return new
... if old.is_Pow:
... return Pow(self, 1, evaluate=Fals
Comment #1 on issue 3875 by smi...@gmail.com: evalf(subs) does not do the
substitution
http://code.google.com/p/sympy/issues/detail?id=3875
evalf is not as naive as subs; x*0 could be 0 or Nan; since you didn't
resovle all symbols you can't get an evaluation.
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Comment #11 on issue 3699 by smi...@gmail.com: solve() should be able to
tell you when it knows it's found all the solutions
http://code.google.com/p/sympy/issues/detail?id=3699
One way something can be learned about the function is to check its series:
eq=(sinh(x)*sinh (sinh (x))+cosh (x)*
Status: Valid
Owner:
Labels: Type-Defect Priority-Medium NeedsReview smichr
New issue 3878 by smi...@gmail.com: atan2 should be invertible by solve
http://code.google.com/p/sympy/issues/detail?id=3878
solve(atan2(x, 2) - pi/3, x) == [2*sqrt(3)]
http://stackoverflow.com/questions/6411484/is
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