Christoph Dibak created MATH-1389:
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Summary: Runtime Improvement for getSubMatrix in
Array2DRowRealMatrix
Key: MATH-1389
URL: https://issues.apache.org/jira/browse/MATH-1389
Project: Commons Math
Issue Type: Improvement
Reporter: Christoph Dibak
Priority: Trivial
Fix For: 4.0
Using System.arraycopy() for creating sub-matrices in the getSubMatrix() method
of Array2DRowRealMatrix improves the runtime. Tested for a matrix with
dimension 50x50, the execution was 16 times faster.
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