Updates:
Labels: -NeedsBetterPatch NeedsReview
Comment #12 on issue 2132 by mattpap: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
All problems from #10 and #11 were fixed:
In [1]: a = S("(1-5*x^2)/(x-2*x^3+x^5-1)")
In [2]: a
Out[2]:
⎛ 2⎞
-⎝1 -
Comment #13 on issue 2132 by asmeurer: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
Good idea about just converting RootSum(..., sin) into RootSum(…, Lambda(i,
sin(i))).
It's good to see that you implemented an unevaluated form of RootSum; I was
going to sugge
Comment #14 on issue 2132 by mattpap: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
I used 'auto' keyword because RootSum with auto=False isn't unevaluated, it
just skips some of its simplification algorithms (this is different from
being unevaluated, like e.g. M
Comment #15 on issue 2132 by asmeurer: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
I used 'auto' keyword because RootSum with auto=False isn't unevaluated
That is what I figured. This is fine then.
If it hangs on line 645, then this is performance issue. Impl
Comment #16 on issue 2132 by asmeurer: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
I was playing around to see if this would really fix the issues I am having
with risch_integrate(), and I got this:
In [30]: a = S(" -(1/7 - 2*I*3**(1/2)/21)*log(55/14 - 125*I*3*
Comment #17 on issue 2132 by mattpap: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
polys12 is available from github.com/mattpap/sympy-polys
Known issues:
- possible bug in tests runner makes polystools.py fail on 2.4 (too many
tests ;)
- tests fail in ode modul
Comment #18 on issue 2132 by asmeurer: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
Can you create a pull request and/or separate issue for polys12?
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Comment #19 on issue 2132 by mattpap: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
PolynomialError: non-commutative expressions are not supported
Actually this is true:
In [1]: RootSum(x**2 + 1, Lambda(x, exp(x)))
Out[1]:
⎛ 2 ⎛x⎞⎞
RootSum⎝x + 1
Comment #20 on issue 2132 by asmeurer: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
Also, before we close this, note that the issue in comment 1 has not yet
been fixed.
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Status: Started
Owner: mattpap
Labels: Type-Defect Priority-Medium Polynomial Milestone-Release0.7.0
NeedsReview
New issue 2133 by mattpap: Merge new polynomials manipulation module
http://code.google.com/p/sympy/issues/detail?id=2133
During last week I pushed polys11 branch to the state that
Comment #21 on issue 2132 by mattpap: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
Unless this is trivial to fix, I would put this into a separate issue.
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Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium
New issue 2134 by asmeurer: Derivative of Lambda does not work
http://code.google.com/p/sympy/issues/detail?id=2134
There is a bug with diff and Lambda:
In [31]: Lambda(z, z*log(x - z)).diff(x)
Comment #22 on issue 2132 by asmeurer: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
It's issue 2134.
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Comment #23 on issue 2132 by mattpap: Derivative of RootSum
http://code.google.com/p/sympy/issues/detail?id=2132
And polys12 is issue 2133.
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Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium Milestone-Release0.7.0
New issue 2135 by asmeurer: Drop support for Python 2.4
http://code.google.com/p/sympy/issues/detail?id=2135
Unless there are any objections, I think we should do what was suggested at
http://groups.goo
Comment #1 on issue 2133 by asmeurer: Merge new polynomials manipulation
module
http://code.google.com/p/sympy/issues/detail?id=2133
I don't know how to run cythonized tests. Otherwise, I have tested every
combination, except that I do not have 64-bit Python 2.4 and I do not have
gmpy in
Updates:
Labels: -NeedsReview NeedsBetterPatch mattpap
Comment #2 on issue 2133 by asmeurer: Merge new polynomials manipulation
module
http://code.google.com/p/sympy/issues/detail?id=2133
I think the "gmpy is not installed, using python ground types instead"
message should use the w
Comment #3 on issue 2133 by asmeurer: Merge new polynomials manipulation
module
http://code.google.com/p/sympy/issues/detail?id=2133
I have a mistake above. It turns out that that intervals failure is on
32-bit and 64-bit Python 2.7 with python ground types only (which makes
more sense).
Updates:
Labels: NeedsReview asmeurer
Comment #1 on issue 2135 by asmeurer: Drop support for Python 2.4
http://code.google.com/p/sympy/issues/detail?id=2135
See https://github.com/sympy/sympy/pull/60.
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