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https://issues.apache.org/jira/browse/NUMBERS-70?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16808822#comment-16808822
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Alex D Herbert commented on NUMBERS-70:
---------------------------------------
To convert an angle in radians to degrees you can skip this library altogether
and use the method that has been in java since 1.2:
{code:java}
final double angleDeg = 180;
final double angleRad = Math.toRadians(angleDeg);
{code}
The {{PlaneAngle}} class encapsulates the idea that an angle is a number of
turns around a circle and provides for creation from different units,
normalisation (+/- 0.5 turns) from a reference number of turns and equality
comparisons. A contrived example would be:
{code:java}
final PlaneAngle half = PlaneAngle.ofRadians(Math.PI);
final PlaneAngle threeQuarters = PlaneAngle.ofDegrees(270);
// 1.25 turns
final PlaneAngle halfPlusThreeQuarters =
PlaneAngle.ofTurns(half.toTurns() + threeQuarters.toTurns());
assert halfPlusThreeQuarters.equals(PlaneAngle.ofTurns(1.25));
// Normalise to +/- 0.5 of 0.5 is 0.25 turns
assert halfPlusThreeQuarters.normalize(half).equals(PlaneAngle.ofTurns(0.25));
{code}
> Userguide and reports
> ---------------------
>
> Key: NUMBERS-70
> URL: https://issues.apache.org/jira/browse/NUMBERS-70
> Project: Commons Numbers
> Issue Type: Wish
> Reporter: Gilles
> Priority: Minor
> Labels: benchmark, documentation, gsoc2019
> Fix For: 1.0
>
> Attachments: 0001-Angles-xdoc-is-added.patch,
> 0001-Prime-xdoc-file-is-added.patch, 0001-Primes-xdoc-is-added.patch
>
>
> Review contents of the component towards providing an up-to-date userguide
> and write benchmarking code for generating performance reports
> ([JMH|http://openjdk.java.net/projects/code-tools/jmh/]).
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