Updates:
Labels: -Priority-Medium Priority-High
Comment #6 on issue 281 by asmeurer: Infinity is a subclass of Rational
http://code.google.com/p/sympy/issues/detail?id=281
I just discovered this when fixing issue 2425, and I don't like it. In
addition to speed issues because of
Comment #7 on issue 281 by asmeurer: Infinity is a subclass of Rational
http://code.google.com/p/sympy/issues/detail?id=281
zoo isn't Rational:
In [28]: zoo.is_Rational
Out[28]: False
It's an AtomicExpr. Let's reimplement oo, -oo, and nan in the same way.
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Comment #2 on issue 2359 by smi...@gmail.com: Should Pow(expr, S(1)/2)
print as sqrt(expr)
http://code.google.com/p/sympy/issues/detail?id=2359
I'm guessing the sqrt is common enough to warrant a special case and I like
the other suggestion of using S in the exponent. Can we give S a
Comment #3 on issue 2359 by asmeurer: Should Pow(expr, S(1)/2) print as
sqrt(expr)
http://code.google.com/p/sympy/issues/detail?id=2359
Actually, R(3, 4) is more characters than S(3)/4 (count them).
But of course, it's more if you put it in an exponent, because of the extra
parentheses.
Comment #4 on issue 2359 by matt...@gmail.com: Should Pow(expr, S(1)/2)
print as sqrt(expr)
http://code.google.com/p/sympy/issues/detail?id=2359
oes (x**p)**1/q always denest into x**(p/q)?
No, e.g.:
In [3]: print sqrt(x**3)
(x**3)**(1/2)
How about creating a root function (...)
Comment #5 on issue 2359 by asmeurer: Should Pow(expr, S(1)/2) print as
sqrt(expr)
http://code.google.com/p/sympy/issues/detail?id=2359
That was 1/2.
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Updates:
Status: Fixed
Comment #7 on issue 2425 by smi...@gmail.com: Pretty printing bug
http://code.google.com/p/sympy/issues/detail?id=2425
thanks, it's in.
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Comment #32 on issue 1620 by renato.c...@gmail.com: Allow derivatives of
unknown functions evaluated at a point
http://code.google.com/p/sympy/issues/detail?id=1620
I re-updated this pull request (360) with a much better hash function. I
also fixed Lambda.__hash__ function, it's pull
Status: Accepted
Owner: smi...@gmail.com
Labels: Type-Defect Priority-Medium EasyToFix
New issue 2428 by smi...@gmail.com: PolificationFailed needs to be imported
in polysys
http://code.google.com/p/sympy/issues/detail?id=2428
I thought I filled this out already...perhaps my computer shut
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 2429 by Bartosz.Telenczuk: add quantities support to lambdify
http://code.google.com/p/sympy/issues/detail?id=2429
lambdify function does not work with sympy.physics.units:
In [6]: expr = 2*units.A*a
In [7]: f =
Updates:
Labels: NeedsReview MRocklin
Comment #2 on issue 2424 by asmeurer: Cartesian Product Set
http://code.google.com/p/sympy/issues/detail?id=2424
(No comment was entered for this change.)
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Labels: NeedsReview asmeurer
Comment #12 on issue 2388 by asmeurer: The value of str(expr) depends on a
global setting
http://code.google.com/p/sympy/issues/detail?id=2388
The patch at https://github.com/sympy/sympy/pull/350 fixes this, btw.
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Updates:
Status: Duplicate
Labels: Polynomial Solvers
Mergedinto: 2404
Comment #1 on issue 2428 by asmeurer: PolificationFailed needs to be
imported in polysys
http://code.google.com/p/sympy/issues/detail?id=2428
No, you did.
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Comment #2 on issue 2404 by asmeurer: PolificationFailed needs to be
imported in polysys
http://code.google.com/p/sympy/issues/detail?id=2404
Issue 2428 has been merged into this issue.
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Updates:
Labels: Solvers Polynomial
Comment #3 on issue 2404 by asmeurer: PolificationFailed needs to be
imported in polysys
http://code.google.com/p/sympy/issues/detail?id=2404
(No comment was entered for this change.)
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Issue 2419: Finite Sets
http://code.google.com/p/sympy/issues/detail?id=2419
This issue is now blocking issue 2430.
See http://code.google.com/p/sympy/issues/detail?id=2430
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Issue 2424: Cartesian Product Set
http://code.google.com/p/sympy/issues/detail?id=2424
This issue is now blocking issue 2430.
See http://code.google.com/p/sympy/issues/detail?id=2430
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Status: Accepted
Owner: mrock...@gmail.com
Labels: Type-Enhancement Priority-Medium
New issue 2430 by mrock...@gmail.com: Expression Countable Set
http://code.google.com/p/sympy/issues/detail?id=2430
I'm looking to build a basic vocabulary of sets. Currently Intervals,
Unions, and the
Comment #4 on issue 2404 by smi...@gmail.com: PolificationFailed needs to
be imported in polysys
http://code.google.com/p/sympy/issues/detail?id=2404
1 minute review at https://github.com/sympy/sympy/pull/365; please just
commit it after reviewing if you can. The polysys test passes here.
Comment #1 on issue 2430 by christian.muise: Expression Countable Set
http://code.google.com/p/sympy/issues/detail?id=2430
Why not use lambda's to make up a set's behaviour? If it's countable, then
there should be a mapping from the ints to an element in the set and vice
versa. A lambda can
Comment #2 on issue 2430 by asmeurer: Expression Countable Set
http://code.google.com/p/sympy/issues/detail?id=2430
```python``` only works in GitHub :)
That could be useful. We should support both. Actually, if you implement
set builder notation correctly, you should be able to just as
Comment #5 on issue 2404 by smi...@gmail.com: PolificationFailed needs to
be imported in polysys
http://code.google.com/p/sympy/issues/detail?id=2404
Thanks, Aaron. It's in.
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Comment #1 on issue 2431 by asmeurer: Bug with Poly.is_irreducible
http://code.google.com/p/sympy/issues/detail?id=2431
Ah, sorry, that should be preceded by
a = Poly(x, x)
The point is that Poly.is_irreducible doesn't work at all.
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Status: Accepted
Owner: asmeurer
CC: matt...@gmail.com
Labels: Type-Defect Priority-Medium Polynomial
New issue 2431 by asmeurer: Bug with Poly.is_irreducible
http://code.google.com/p/sympy/issues/detail?id=2431
In [4]: a.is_irreducible
Updates:
Cc: Vinzent.Steinberg ondrej.c...@gmail.com elliso...@gmail.com
Comment #18 on issue 2305 by asmeurer: Integer.isqrt and similar shouldn't
be a method
http://code.google.com/p/sympy/issues/detail?id=2305
Can we get some more opinions on this?
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Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium Testing
New issue 2432 by asmeurer: Tests without assert
http://code.google.com/p/sympy/issues/detail?id=2432
When fixing issue 2308, I noticed that test_Add_primitive() in test_arit.py
was just a bunch of equality checks
Updates:
Labels: -NeedsBetterPatch NeedsReview
Comment #19 on issue 2308 by asmeurer: Should we rename primitive()? (and
Expr.primitive() should call primitive())
http://code.google.com/p/sympy/issues/detail?id=2308
OK, I updated the branch at https://github.com/sympy/sympy/pull/322
Updates:
Status: Accepted
Labels: NeedsReview asmeurer
Comment #3 on issue 2304 by asmeurer: Remove Pure from top-level namespace
http://code.google.com/p/sympy/issues/detail?id=2304
I decided to just remove Pure completely. It was only being used as a
generator for the
Comment #4 on issue 2304 by asmeurer: Remove Pure from top-level namespace
http://code.google.com/p/sympy/issues/detail?id=2304
It seems that Mathematic link is broken. Anyway, I was just following the
link from
http://mathworld.wolfram.com/AlgebraicNumberMinimalPolynomial.html, which
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