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From Christoph Höger (JIRA) <j...@apache.org>
Subject [jira] [Created] (MATH-937) NoBracketingException after event was found
Date Thu, 28 Feb 2013 11:49:12 GMT
Christoph Höger created MATH-937:
------------------------------------

             Summary: 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


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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