[jira] [Commented] (NUMBERS-65) "RootsOfUnity" vs "nthRoot"

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

    [ https://issues.apache.org/jira/browse/NUMBERS-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16350558#comment-16350558 ] 

Gilles commented on NUMBERS-65:
-------------------------------

Commit ea2c1d79d8b482bed262541e813d037294e6b572 modified a unit test in {{RootsOfUnityTest}} to show that the implementations agree up to some tolerance.
They however do not produce the same numbers exactly; it would be nice to ensure that the more accurate is retained.

> "RootsOfUnity" vs "nthRoot"
> ---------------------------
>
>                 Key: NUMBERS-65
>                 URL: https://issues.apache.org/jira/browse/NUMBERS-65
>             Project: Commons Numbers
>          Issue Type: Task
>          Components: complex
>            Reporter: Gilles
>            Priority: Major
>              Labels: API, delete
>             Fix For: 1.0
>
>
> There is partial overlap of functionality between class {{RootsOfUnity}} and method {{nthRoot}} (in class {{Complex}}).
> The latter is more general (any complex number) but the former allows a negative argument (to specify clockwise ordering).
> Also, the implementations are different; it should be checked which is more accurate (and then account for possible performance trade-offs).
> API-wise, I think that we should keep {{nthRoot}} (and delete {{RootsOfUnity}}).



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)