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https://issues.apache.org/jira/browse/MATH-656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gilles resolved MATH-656.
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Resolution: Incomplete
Fix Version/s: (was: 4.0)
Cannot be resolved independently of MATH-765.
> "isSparse()" method vs marker interfaces
> ----------------------------------------
>
> Key: MATH-656
> URL: https://issues.apache.org/jira/browse/MATH-656
> Project: Commons Math
> Issue Type: Improvement
> Reporter: Gilles
> Priority: Trivial
>
> From discussions on the "dev" ML, it seems that it would be advantageous to
> introduce a method "isSparse()" in "RealVector" and in "RealMatrix".
> For "RealVector", it will make sense to use it to select between "iterator()"
> and "sparseIterator()" in methods implemented in that class.
> We could then remove the "SparseRealVector" and "SparseRealMatrix" interfaces.
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