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From sebb <seb...@gmail.com>
Subject Re: [jira] [Closed] (MATH-960) ODE integrator do not handle some additional equations properly
Date Sun, 07 Apr 2013 19:05:14 GMT
On 7 April 2013 10:23, Luc Maisonobe (JIRA) <jira@apache.org> wrote:

>
>      [
> https://issues.apache.org/jira/browse/MATH-960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel]
>
> Luc Maisonobe closed MATH-960.
> ------------------------------
>
>
> Closing issue as version 3.2 has been released on 2013-04-06.
>
>
Next time when closing multiple issues, please consider using bulk edit.
You can suppress the e-mail messages when doing so.


> > ODE integrator do not handle some additional equations properly
> > ---------------------------------------------------------------
> >
> >                 Key: MATH-960
> >                 URL: https://issues.apache.org/jira/browse/MATH-960
> >             Project: Commons Math
> >          Issue Type: Bug
> >    Affects Versions: 3.1.1
> >            Reporter: Luc Maisonobe
> >            Assignee: Luc Maisonobe
> >             Fix For: 3.2
> >
> >
> > Differential equations may be split as a primary equation and several
> secondary equations. In some cases, the secondary equations may have an
> effect on he primary derivatives. This can be handled using the method
> computeDerivatives(double t, double[] primary, double[] primaryDot,
> double[] secondary, double[] secondaryDot) from the SecondaryEquations
> interface.
> > However, when the secondary equations updateds the primaryDot array
> using this method, the update is ignored.
>
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