[jira] [Commented] (FLINK-3996) Add addition, subtraction and multiply by scalar to DenseVector.scala and SparseVector.scala

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-3996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15307565#comment-15307565 ] 

ASF GitHub Bot commented on FLINK-3996:
---------------------------------------

Github user danielblazevski commented on the pull request:

    https://github.com/apache/flink/pull/2052
  
    @chiwanpark done.  


> Add addition, subtraction and multiply by scalar to DenseVector.scala and SparseVector.scala
> --------------------------------------------------------------------------------------------
>
>                 Key: FLINK-3996
>                 URL: https://issues.apache.org/jira/browse/FLINK-3996
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Daniel Blazevski
>            Assignee: Daniel Blazevski
>            Priority: Minor
>
> Small change to add vector operations. With this small change, can now do things like:
> val v1 = DenseVector(0.1, 0.1)
> val v2 = DenseVector(0.2, 0.2)
> val v3 = v1 + v2
> instead of what is now has to be done:
> val v1 = DenseVector(0.1, 0.1)
> val v2 = DenseVector(0.2, 0.2)
> val v3 = (v1.asBreeze + v2.asBreeze).fromBreeze



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