You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@commons.apache.org by "Luc Maisonobe (JIRA)" <ji...@apache.org> on 2008/07/10 14:34:33 UTC
[jira] Created: (MATH-214) fixed step Runge-Kutta integrators
slightly change step size
fixed step Runge-Kutta integrators slightly change step size
------------------------------------------------------------
Key: MATH-214
URL: https://issues.apache.org/jira/browse/MATH-214
Project: Commons Math
Issue Type: Bug
Affects Versions: 1.2
Environment: all
Reporter: Luc Maisonobe
Assignee: Luc Maisonobe
Fix For: 2.0
When a fixed step Runge-Kutta integrator is used, it may slightly change the step size for all integration range.
This is due to a step recomputation feature which ensures the last step ends exactly at the end of the range.
This feature should be removed, since it is unnatural and does not obey users choices.
It should be replaced by the same kind of solution already adopted for discrete events: truncating only the last step.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Resolved: (MATH-214) fixed step Runge-Kutta integrators
slightly change step size
Posted by "Luc Maisonobe (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Luc Maisonobe resolved MATH-214.
--------------------------------
Resolution: Fixed
fixed as of r675552
> fixed step Runge-Kutta integrators slightly change step size
> ------------------------------------------------------------
>
> Key: MATH-214
> URL: https://issues.apache.org/jira/browse/MATH-214
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 1.2
> Environment: all
> Reporter: Luc Maisonobe
> Assignee: Luc Maisonobe
> Fix For: 2.0
>
>
> When a fixed step Runge-Kutta integrator is used, it may slightly change the step size for all integration range.
> This is due to a step recomputation feature which ensures the last step ends exactly at the end of the range.
> This feature should be removed, since it is unnatural and does not obey users choices.
> It should be replaced by the same kind of solution already adopted for discrete events: truncating only the last step.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.