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https://issues.apache.org/jira/browse/MATH-929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gilles resolved MATH-929.
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Resolution: Fixed
Corrected in revision 1433367.
Thanks a lot for the report and fix!
A few weeks, Thomas wondered why using "0.5 * x" instead of "x / 2". That's an
excellent reason... Unfortunately that instance slipped through my scanner :(.
> MultivariateNormalDistribution.density(double[]) returns wrong value when the
> dimension is odd
> ----------------------------------------------------------------------------------------------
>
> Key: MATH-929
> URL: https://issues.apache.org/jira/browse/MATH-929
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 3.1.1
> Reporter: Piotr Wydrych
> Priority: Critical
> Fix For: 3.2
>
> Attachments: MultivariateNormalDistribution.java.patch
>
>
> To reproduce:
> {code}
> Assert.assertEquals(0.398942280401433, new MultivariateNormalDistribution(new
> double[]{0}, new double[][]{{1}}).density(new double[]{0}), 1e-15);
> {code}
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