I'm more than happy to help out (I have a vested interest: Mathics'
Integrate essentially converts the expression to SymPy, does the
integration and then converts back).
Once there's something to convert the Mathematica patterns to I'd just need
to extend the 'to_sympy' and 'from_sympy'
The site just says: The mathematical knowledge on this website is
freely available for any educational, academic or commercial use.
Please include the website address and appropriately acknowledge its
author in any product incorporating its contents. So I guess that
means we can reuse it.
But I
But no claim is raised that the test suites cover the whole range of
interesting problems! In fact they developed around the discussion of
Albert Rich's Rubi (RUle-Based Integration). It is worth to look this up:
http://www.apmaths.uwo.ca/~arich/
Wow, that code is amazingly simple!
What about asking people at Mathics some help to import these rule-based
integration scripts?
Mathics is a project to create an interpreter similar to Wolfram
Mathematica, with algorithmic fallback on SymPy and/or Sage. I think they
are experienced in translating Mathematica code to SymPy.
--
I think the people at Mathics is just Angus, but sure, feel free to
ask him if he wants to help out :)
Aaron Meurer
On Mon, Sep 16, 2013 at 4:42 PM, F. B. franz.bona...@gmail.com wrote:
What about asking people at Mathics some help to import these rule-based
integration scripts?
Mathics is a
On Fri, Sep 13, 2013 at 8:12 AM, Mateusz Paprocki matt...@gmail.com wrote:
Hi,
On 13 September 2013 02:09, Aaron Meurer asmeu...@gmail.com wrote:
Yes, the fallback algorithm in SymPy, heurisch, is very slow. What's
the longest time an integral took that still gave an answer from your
tests?
AM Yes, the fallback algorithm in SymPy, heurisch, is very slow. What's
AM the longest time an integral took that still gave an answer from your
AM tests?
Most of the time I used a time-out of one minute, so I cannot tell. But see
this comment by Waldek Hebisch:
Hi,
On 13 September 2013 02:09, Aaron Meurer asmeu...@gmail.com wrote:
Yes, the fallback algorithm in SymPy, heurisch, is very slow. What's
the longest time an integral took that still gave an answer from your
tests?
Example 181 can be computed, in improve-heurisch branch, as follows:
In
Two integration test suites
For some history of the two integration test suites see [1].
An implementation for SymPy can be found at github [2].
The results are listed at [3].
Running the test suites I found some examples which seem
to need special attention by the developers:
[161] Timofeev
Yes, the fallback algorithm in SymPy, heurisch, is very slow. What's
the longest time an integral took that still gave an answer from your
tests?
There has been work this summer on improving the Risch algorithm in
SymPy to handle trigonometric functions. Unfortunately, none of it is
exposed to
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