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https://issues.apache.org/jira/browse/MAHOUT-26?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12587983#action_12587983
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Sergey Chickin commented on MAHOUT-26:
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I think it would be a good idea
We could also implement another implementations of determinant calculation but 
I don't think they are more efficient than this one
The other useful things to implement are multiplication of matrix by vector and 
vector transposition(returning a Matrix) and maybe calculating inverse matrix

> Matrix implementation bug fix and little addition
> -------------------------------------------------
>
>                 Key: MAHOUT-26
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-26
>             Project: Mahout
>          Issue Type: Bug
>         Environment: JDK 1.6, IntelliJ Idea 7.0.2
>            Reporter: Sergey Chickin
>            Assignee: Karl Wettin
>         Attachments: MAHOUT-26.patch, MAHOUT-26a.patch
>
>
> Some bugfixes to matrix multiplication and implementation of recursive 
> determinant calculation using Laplace theorem

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