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From "Luc Maisonobe (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MATH-388) ODE integrator: different size needed for state vector and tolerance error vector dimension
Date Fri, 23 Jul 2010 09:04:52 GMT

     [ https://issues.apache.org/jira/browse/MATH-388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Luc Maisonobe resolved MATH-388.
--------------------------------

    Resolution: Fixed

fixed in subversion repository as of r919963
Note that ODEWithJacobians & ParameterizedODE classes still don't implement ExtendedFirstOrderDifferentialEquations,
they should remain simple at user level, it is the MappingWrapper private class inside FirstOrderIntegratorWithJacobians
that implements the extended set of equations.

> ODE integrator: different size needed for state vector and tolerance error vector dimension
> -------------------------------------------------------------------------------------------
>
>                 Key: MATH-388
>                 URL: https://issues.apache.org/jira/browse/MATH-388
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Pascal Parraud
>            Assignee: Luc Maisonobe
>             Fix For: 2.2
>
>         Attachments: math-388.patch
>
>
> The user should be allowed to chose a tolerance vector dimension different from the state
vector dimension.
> For example, using the FirstOrderIntegratorWithJacibians, we don't want to set some tolerance
error for the jacobian part in order to not interfere with the main state vector integration.
> This is really a problem with the dimension of the tolerance vector, there is no work-around
assigning some particular value to the tolerance vector.

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