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Posted to issues@commons.apache.org by "Thomas Neidhart (JIRA)" <ji...@apache.org> on 2013/09/03 22:43:52 UTC

[jira] [Comment Edited] (MATH-1004) Inversion of diagonal matrix

    [ https://issues.apache.org/jira/browse/MATH-1004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13754481#comment-13754481 ] 

Thomas Neidhart edited comment on MATH-1004 at 9/3/13 8:43 PM:
---------------------------------------------------------------

We might also, for convenience, add a MatrixUtils.inverse(RealMatrix) method which delegates to the inverse(DiagonalMatrix) variant in case of a DiagonalMatrix, and in other cases use a LU or CholeskyDecomposition to compute the inverse, depending on the properties of the matrix.
                
      was (Author: tn):
    We might also, for convenience, add a MatrixUtils.inverse(RealMatrix) method which delegates to the inverse(DiagonalMatrix) variant in case of a DiagonalMatrix, and in other cases use a CholeskyDecomposition to compute the inverse?
                  
> Inversion of diagonal matrix
> ----------------------------
>
>                 Key: MATH-1004
>                 URL: https://issues.apache.org/jira/browse/MATH-1004
>             Project: Commons Math
>          Issue Type: New Feature
>            Reporter: Ajo Fod
>            Priority: Minor
>         Attachments: MATH-1004.patch
>
>
> This should be a very easy feature to add and has many applications. 

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