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https://issues.apache.org/jira/browse/MATH-783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gilles resolved MATH-783.
-------------------------
Resolution: Fixed
Applied in revision 1330739.
> Inconsistent assumptions about tolerances in "PowellOptimizer"
> --------------------------------------------------------------
>
> Key: MATH-783
> URL: https://issues.apache.org/jira/browse/MATH-783
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.0
> Reporter: Gilles
> Assignee: Gilles
> Fix For: 3.1
>
> Attachments: MATH-783.patch
>
>
> Internally, the algorithm in "PowellOptimizer" (package
> "optimization.direct") uses "BrentOptimizer" (from package
> "optimization.univariate") to perform a "line" search. The problem is that
> the default stopping criterion of "BrentOptimizer" refers to the domain
> values while the default criterion in "PowellOptimizer" refers to function
> values.
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