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Posted to issues@commons.apache.org by "Christoph Dibak (JIRA)" <ji...@apache.org> on 2016/10/05 13:14:20 UTC
[jira] [Updated] (MATH-1389) Runtime Improvement for getSubMatrix
in Array2DRowRealMatrix
[ https://issues.apache.org/jira/browse/MATH-1389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christoph Dibak updated MATH-1389:
----------------------------------
Flags: Patch
Fix Version/s: (was: 4.0)
> Runtime Improvement for getSubMatrix in Array2DRowRealMatrix
> ------------------------------------------------------------
>
> Key: MATH-1389
> URL: https://issues.apache.org/jira/browse/MATH-1389
> Project: Commons Math
> Issue Type: Improvement
> Reporter: Christoph Dibak
> Priority: Trivial
> Original Estimate: 0.3h
> Remaining Estimate: 0.3h
>
> Using System.arraycopy() for creating sub-matrices in the getSubMatrix() method of Array2DRowRealMatrix improves the runtime. Tested for a matrix with dimension 50x50, the execution was 16 times faster.
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