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https://issues.apache.org/jira/browse/LANG-912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13755894#comment-13755894
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Henri Yandell commented on LANG-912:
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Add sum() and you have to support N other operations, including averages.
> MathUtils.sum() method to add together a bunch of numbers.
> ----------------------------------------------------------
>
> Key: LANG-912
> URL: https://issues.apache.org/jira/browse/LANG-912
> Project: Commons Lang
> Issue Type: New Feature
> Components: lang.math.*
> Affects Versions: 3.1
> Environment: Any
> Reporter: Matt Bishop
> Priority: Minor
> Fix For: 3.2
>
>
> I find myself doing sums frequently with a variety of numbers. It would be
> nice if MathUtils had a method like this:
> int add(int... numbers);
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