[Maxima] [sage-devel] elliptic_e(0.5, 0.1) differs from Mathematica 7 by about 0.04%.

Dr. David Kirkby david.kirkby at onetel.net
Sun Aug 9 15:14:34 CDT 2009


Dr. David Kirkby wrote:
> I've built Sage on a sun4u SPARC machine, using Maxima 5.19.0 and ECL 9.8.1
> 
> Sage fails about 15 tests, one of which is below. I computed the result 
> in Mathematica too, and find the result on the SPARC does differ from 
> what Sage expects, and the result Sage expects is much closer to the 
> result from Mathematica.
> 
>      sage: elliptic_eu (0.5, 0.1)
> Expected:
>      0.496054551287
> Got:
>      0.495848403419

sorry, I posted the wrong result - there is this failure, but the one I 
meant to post was:

     sage: elliptic_e(0.5, 0.1)
Expected:
      0.498011394499
Got:
      0.497801100392

Mathematica gives: 0.49801139449883153311546104061744810584963105068054


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