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From "Matthias Boehm (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SYSTEMML-1624) Incorrect result for A^B when A & B are matrices of zeroes
Date Thu, 22 Jun 2017 05:38:00 GMT

    [ https://issues.apache.org/jira/browse/SYSTEMML-1624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16058793#comment-16058793
] 

Matthias Boehm commented on SYSTEMML-1624:
------------------------------------------

thanks for catching this [~dusenberrymw] - somehow I missed this.

> Incorrect result for A^B when A & B are matrices of zeroes
> ----------------------------------------------------------
>
>                 Key: SYSTEMML-1624
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1624
>             Project: SystemML
>          Issue Type: Bug
>          Components: Runtime
>            Reporter: Nakul Jindal
>            Priority: Critical
>
> For the following program:
> {code}
> A = matrix(0, rows=1, cols=1)
> B = matrix(0, rows=1, cols=1)
> C = A^B
> print(toString(C))
> {code}
> the value printed out is 0.0
> The correct result is 1.0.
> Note that the following code however prints the correct value:
> {code}
> D = 0.0 ^ 0.0
> print(D)
> {code}
> Ping [~mboehm7], [~niketanpansare], [~mwdusenb@us.ibm.com]



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