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From "Janardhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SYSTEMML-1626) x = solve(A,b) should report an error when it is an underdetermined system (in CP mode)
Date Thu, 15 Mar 2018 21:47:00 GMT

    [ https://issues.apache.org/jira/browse/SYSTEMML-1626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16401151#comment-16401151
] 

Janardhan commented on SYSTEMML-1626:
-------------------------------------

Hi [~nakul02] , the method seems to be made for inspection of the matrices. Hence, the toString()
priting the matrix in space separated format seem ok to me, instead of an error.

> x = solve(A,b) should report an error when it is an underdetermined system (in CP mode)
> ---------------------------------------------------------------------------------------
>
>                 Key: SYSTEMML-1626
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1626
>             Project: SystemML
>          Issue Type: Bug
>          Components: Runtime
>    Affects Versions: SystemML 0.14
>            Reporter: Nakul Jindal
>            Assignee: Janardhan
>            Priority: Major
>
> {code}
> m = 16
> n = 8
> A = rand(rows=m, cols=n)
> b = rand(rows=m, cols=1)
> x = solve(A, b)
> print(toString(x))
> {code}
> Should print an error, instead it prints a 8x1 vector.



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