[jira] [Closed] (NUMBERS-94) PlaneAngle normalize fails for very small numbers.

["Matt Juntunen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NUMBERS-94?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Juntunen closed NUMBERS-94.
--------------------------------

> PlaneAngle normalize fails for very small numbers.
> --------------------------------------------------
>
>                 Key: NUMBERS-94
>                 URL: https://issues.apache.org/jira/browse/NUMBERS-94
>             Project: Commons Numbers
>          Issue Type: Bug
>            Reporter: Matt Juntunen
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> When the {{PlaneAngle.normalize()}} method is called to normalize between 0 and 1 turns and is passed a very small number compared to the 1, then the method returns a number exactly equal to the angle upper bound. This breaks the API contract since the return value must be strictly less than the upper bound. Ex:
> {code:java}
> PlaneAngle angle = PlaneAngle.ofTurns(-1e-18);
> double normalized = angle.normalize(PlaneAngle.PI).toTurns();
> // normalized is equal to 1 but it should be 0 since 1 - 1e-18 = 1, which is equivalent to 0 in turns
> {code}
> Pull request: https://github.com/apache/commons-numbers/pull/30



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