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https://issues.apache.org/jira/browse/MATH-862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608325#comment-13608325
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Thomas Neidhart commented on MATH-862:
--------------------------------------
The RealMatrix interface has 3 methods that have a double[][] as parameters:
* copySubMatrix(int, int, int, int, double[][])
* copySubMatrix(int[], int[], double[][])
* setSubMatrix(double[][], int, int)
The setSubMatrix in AbstractRealMatrix and Array2DRowRealMatrix already have a
check for a rectangular matrix.
In r1459081 the check + unit tests have also been added to the copySubMatrix
methods.
> AbstractRealMatrix should check that all supplied double[][] arrays are
> rectangular
> -----------------------------------------------------------------------------------
>
> Key: MATH-862
> URL: https://issues.apache.org/jira/browse/MATH-862
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.2
> Reporter: Sébastien Brisard
> Priority: Minor
> Labels: exception, linear
>
> Many methods in RealMatrix take as an argument a {{double[][]}} as the
> representation of a matrix. As such, the array should be rectangular. Checks
> should be provided, as requested in the Javadoc of e.g. {{void
> setSubMatrix(double[][], int, int)}}.
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