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Posted to issues@commons.apache.org by "Luc Maisonobe (JIRA)" <ji...@apache.org> on 2013/04/07 11:21:16 UTC

[jira] [Closed] (MATH-937) NoBracketingException after event was found

     [ https://issues.apache.org/jira/browse/MATH-937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Luc Maisonobe closed MATH-937.
------------------------------


Closing issue as version 3.2 has been released on 2013-04-06.
                
> NoBracketingException after event was found
> -------------------------------------------
>
>                 Key: MATH-937
>                 URL: https://issues.apache.org/jira/browse/MATH-937
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.1.1
>            Reporter: Christoph Höger
>             Fix For: 3.2
>
>         Attachments: ApacheCommonsBouncingBall.java, ApacheCommonsBouncingBallTest.java
>
>
> The BracketingNthOrderBrentSolver used by the EmbeddedRungeKuttaIntegrator fails, if an event is detected twice with a NoBracketingException.
> The problem lies in line EventState.java line 262 (version 3.1.1). Here the event detection function f is applied to an arbitrary choosen value of time. If the event detector crosses zero before this time, the solver throws the mentioned exception.

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