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Posted to issues@commons.apache.org by "Luc Maisonobe (JIRA)" <ji...@apache.org> on 2013/04/07 11:21:21 UTC
[jira] [Closed] (MATH-951) Patch: Faster implementation of double
org.apache.commons.math3.util.FastMath.copySign(double, double)
[ https://issues.apache.org/jira/browse/MATH-951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Luc Maisonobe closed MATH-951.
------------------------------
Closing issue as version 3.2 has been released on 2013-04-06.
> Patch: Faster implementation of double org.apache.commons.math3.util.FastMath.copySign(double, double)
> ------------------------------------------------------------------------------------------------------
>
> Key: MATH-951
> URL: https://issues.apache.org/jira/browse/MATH-951
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.2
> Environment: java version "1.6.0_27"
> OpenJDK Runtime Environment (IcedTea6 1.12.3) (6b27-1.12.3-1)
> OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)
> Linux debian 3.2.0-4-amd64 #2 SMP Wed Jan 2 01:41:29 PST 2013 x86_64 GNU/Linux
> Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz
> Reporter: Charles Cooper
> Priority: Minor
> Labels: patch, performance
> Fix For: 3.2
>
> Attachments: patch, patch
>
> Original Estimate: 0h
> Remaining Estimate: 0h
>
> Between 40-50% faster than both current implementation and java.lang.Math.copySign by my (sloppy) benchmark. Patch attached.
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