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From "Thomas Neidhart (JIRA)" <>
Subject [jira] [Commented] (MATH-235) Eigenvalues/eigenvectors of real asymmetric matrices
Date Wed, 30 May 2012 18:40:24 GMT


Thomas Neidhart commented on MATH-235:

As already written on the mailinglist, the port has been committed to the trunk.

The integrated DecompositionSolver has not yet been adapted for complex eigenvalues, but the
rest should be working. Any help and feedback is welcome!
> Eigenvalues/eigenvectors of real asymmetric matrices
> ----------------------------------------------------
>                 Key: MATH-235
>                 URL:
>             Project: Commons Math
>          Issue Type: New Feature
>    Affects Versions: 2.1
>            Reporter: James Housden
>            Assignee: Thomas Neidhart
>            Priority: Minor
>             Fix For: 3.1
>         Attachments: MATH-235_HessenbergTransformer.patch
> The EigenDecompositionImpl class contains methods to calculate the eigenvalues/eigenvectors
of real symmetric matrices. However, for real asymmetric matrices there are currently no methods
available to do this.
> It would be nice if commons-math could be enhanced to provide this extra functionality.
> Please note that the JAMA package contains a possible implementation in its EigenvalueDecomposition

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