Gilles created MATH-1113:
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Summary: "FastMath.atan" is slow
Key: MATH-1113
URL: https://issues.apache.org/jira/browse/MATH-1113
Project: Commons Math
Issue Type: Improvement
Affects Versions: 3.2
Reporter: Gilles
Priority: Minor
Fix For: 3.3
This issue is related to
MATH-740
MATH-901
Micro-benchmarks show that "FastMath.atan2" is faster than "Math.atan2" but
that "FastMath.atan" is slower than "Math.atan". However, both "FastMath.atan2"
and "Math.atan" call the internal method "FastMath.atan(double,double,boolean)".
It seems that some performance improvement could be achieved, through
understanding why the results seem contradictory.
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