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https://issues.apache.org/jira/browse/MATH-855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13450725#comment-13450725
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Gilles commented on MATH-855:
-----------------------------

That was not it yet; further improvement committed in revision 1382070, 
together with a Javadoc update explaining some change wrt the original version 
of the algorithm.

                
> "BrentOptimizer" not always reporting the best point
> ----------------------------------------------------
>
>                 Key: MATH-855
>                 URL: https://issues.apache.org/jira/browse/MATH-855
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.0
>            Reporter: Gilles
>            Priority: Minor
>             Fix For: 3.1
>
>         Attachments: MATH-855.patch
>
>
> {{BrentOptimizer}} (package "o.a.c.m.optimization.univariate") does not check 
> that the point it is going to return is indeed the best one it has 
> encountered. Indeed, the last evaluated point might be slightly worse than 
> the one before last.

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