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From "Benjamin McCann (JIRA)" <>
Subject [jira] Updated: (MATH-272) Simplex Solver arrives at incorrect solution
Date Sat, 30 May 2009 03:14:07 GMT


Benjamin McCann updated MATH-272:

    Attachment: SimplexTableau.patch

Previously, there was a bug where we could set one of a number of variables equal to some
value.  We were setting all the variables instead of choosing one.  When I patched that bug,
I did it incorrectly.  This is a correct implementation, which causes the old bug and the
attached test to both pass.

> Simplex Solver arrives at incorrect solution
> --------------------------------------------
>                 Key: MATH-272
>                 URL:
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Benjamin McCann
>             Fix For: 2.0
>         Attachments: SimplexSolvetTest.txt, SimplexTableau.patch
> I have reduced the problem reported to me down to a minimal test case which I will attach.

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