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https://issues.apache.org/jira/browse/MATH-405?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luc Maisonobe closed MATH-405.
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Closing issue as it was included in version 2.2, which has been released

> Inconsistent result from Levenberg-Marquardt
> --------------------------------------------
>
>                 Key: MATH-405
>                 URL: https://issues.apache.org/jira/browse/MATH-405
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 2.1
>            Reporter: Dimitri Pourbaix
>            Assignee: Dimitri Pourbaix
>             Fix For: Nightly Builds
>
>         Attachments: MATH-405.patch
>
>
> Levenberg-Marquardt (its method doOptimize) returns a 
> VectorialPointValuePair.  However, the class holds the optimum point, the 
> vector of the objective function, the cost and residuals.  The value returns 
> by doOptimize does not always corresponds to the point which leads to the 
> residuals and cost

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