Status: Accepted
Owner:
CC: ness...@gmail.com
Labels: Type-Defect Priority-Medium
New issue 3057 by someb...@bluewin.ch: Closed form results for meijerg
functions
http://code.google.com/p/sympy/issues/detail?id=3057
We should do more closed form results for meijerg functions. When comput
Updates:
Labels: Simplify
Comment #1 on issue 3057 by asmeu...@gmail.com: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
(No comment was entered for this change.)
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Comment #2 on issue 3057 by ness...@gmail.com: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
Thank you for entering these. I will look through them during the next
weeks. (I'm in the middle of term though, so pretty busy.)
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Comment #4 on issue 3057 by ness...@gmail.com: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
The first of these works for me (now?).
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Comment #5 on issue 3057 by someb...@bluewin.ch: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
Really? On master? Just tried it again and it does not for me.
Did you make assumtions on a, t or w?
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Comment #6 on issue 3057 by ness...@gmail.com: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
You are right I had assumed a to be positive.
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Comment #7 on issue 3057 by someb...@bluewin.ch: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
But you are right too. Just looked it up in the tables and there it
says "a>0".
Maybe there is no simple solution otherwise. But note that even wi
Comment #8 on issue 3057 by asmeu...@gmail.com: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
Is it possible to give Piecewise((closed_form_answer, a > 0),
(meijer_g_answer, True))?
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Comment #9 on issue 3057 by skirpic...@gmail.com: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
First example returns:
___ ⎛(2⋅Si(a⋅w) - π)⋅sin(a⋅w) ⎞
-╲╱ 2 ⋅⎜ + cos(a⋅w)⋅Ci(a⋅w)⎟
⎝
Updates:
Cc: -ness...@googlemail.com
Comment #10 on issue 3057 by someb...@bluewin.ch: Closed form results for
meijerg functions
http://code.google.com/p/sympy/issues/detail?id=3057
Again, hyperexpand works now, but results are different:
In [34]: sympify("meijerg(((1/2, 0), ()), ((1
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