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From "Luc Maisonobe (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MATH-1160) ContinuousOutputModel for ordinary differential equations should provide derivatives
Date Wed, 22 Oct 2014 15:36:34 GMT

     [ https://issues.apache.org/jira/browse/MATH-1160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Luc Maisonobe resolved MATH-1160.
---------------------------------
    Resolution: Fixed

Solved in git repository as of commit 25aa4bd3.

> ContinuousOutputModel for ordinary differential equations should provide derivatives
> ------------------------------------------------------------------------------------
>
>                 Key: MATH-1160
>                 URL: https://issues.apache.org/jira/browse/MATH-1160
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 3.3
>            Reporter: Luc Maisonobe
>            Assignee: Luc Maisonobe
>            Priority: Trivial
>             Fix For: 3.4
>
>
> The ContinuousOutputModel class allows to store the evolution of the state of an ODE
system throughout integration. It aims to provides at a global level all the information that
is available at local level in step handlers. It does so by storing the step interpolators
as integration is performed, and delegate data retrieval to the interpolator matching the
time step.
> However, there is a missing part: step interpolators do provide access to the derivatives
of the state, whereas ContinuousOutputModel does not. A getInterpolatedDerivatives method
should be added, matching the method with the same name in StepInterpolator.



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