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Posted to dev@lucene.apache.org by "Cassandra Targett (JIRA)" <ji...@apache.org> on 2017/07/25 18:24:00 UTC

[jira] [Updated] (SOLR-10633) Add cosAngle Stream Evaluator

     [ https://issues.apache.org/jira/browse/SOLR-10633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cassandra Targett updated SOLR-10633:
-------------------------------------
    Component/s: streaming expressions

> Add cosAngle Stream Evaluator
> -----------------------------
>
>                 Key: SOLR-10633
>                 URL: https://issues.apache.org/jira/browse/SOLR-10633
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: streaming expressions
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>             Fix For: 7.0
>
>
> This ticket will add a cosAngle Stream Evaluator to calculate the cosine angle between two vectors. 
> {code}
> a = cosAngle(colA, colB)
> {code}
> The implementation is provided by Apache Commons Numbers



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