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https://issues.apache.org/jira/browse/MATH-685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gilles resolved MATH-685.
-------------------------
Resolution: Fixed
Revision 1185398.
> Add method "addToEntry" to the "RealVector" interface
> -----------------------------------------------------
>
> Key: MATH-685
> URL: https://issues.apache.org/jira/browse/MATH-685
> Project: Commons Math
> Issue Type: Wish
> Reporter: Gilles
> Assignee: Gilles
> Priority: Trivial
> Labels: api-change
> Fix For: 3.0
>
>
> Method "addToEntry":
> {code}
> m.addToEntry(i, j, addend);
> {code}
> as a shortcut to:
> {code}
> m.setEntry(i, j, m.getEntry(i, j) + addend);
> {code}
> It has been argued (on the "dev" ML) that some functional style would be a
> powerful and elegant way to implement a whole set of related functionality
> ("scale", "scaleAndAdd", etc.). However some simple things (like when the
> "addend" depends on "i" and "j") cannot be achieved without writing many more
> lines of code.
> Method "addToEntry" exists in "RealMatrix". If and when some satisfactory
> solution is found in order to remove it there, "RealVector" can always be
> aligned with it.
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