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Posted to issues@commons.apache.org by "Gilles Sadowski (Jira)" <ji...@apache.org> on 2021/06/05 12:54:00 UTC

[jira] [Updated] (MATH-1430) Singularity check in QRDecomposition

     [ https://issues.apache.org/jira/browse/MATH-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gilles Sadowski updated MATH-1430:
----------------------------------
    Fix Version/s:     (was: 4.0)
                   4.X

> Singularity check in QRDecomposition
> ------------------------------------
>
>                 Key: MATH-1430
>                 URL: https://issues.apache.org/jira/browse/MATH-1430
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 3.6.1
>            Reporter: Gilles Sadowski
>            Priority: Minor
>             Fix For: 4.X
>
>         Attachments: MATH-1430.unit_test.diff
>
>
> In class {{o.a.c.m.linear.QRDecomposition}}, the singularity check seems not to be robust enough to catch some (numerically) singular matrices.



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