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Posted to issues@commons.apache.org by "Eric Barnhill (JIRA)" <ji...@apache.org> on 2017/04/23 17:16:04 UTC

[jira] [Updated] (NUMBERS-27) In Complex, replace hand-coded hypot with Java.lang.Math.hypot

     [ https://issues.apache.org/jira/browse/NUMBERS-27?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Barnhill updated NUMBERS-27:
---------------------------------
    Summary: In Complex, replace hand-coded hypot with Java.lang.Math.hypot  (was: In Complex, replace homegrown hypot with Java.Math.hypot)

> In Complex, replace hand-coded hypot with Java.lang.Math.hypot
> --------------------------------------------------------------
>
>                 Key: NUMBERS-27
>                 URL: https://issues.apache.org/jira/browse/NUMBERS-27
>             Project: Commons Numbers
>          Issue Type: Improvement
>            Reporter: Eric Barnhill
>            Priority: Trivial
>
> ISO C standard for Complex numbers states that the abs() must be obtained with a hypot() function to avoid over and underflows. The function is correctly hand-coded in the current iteration of Complex, but I see no need for this. Propose replacing with java.lang.Math.hypot to make the code and its conformance to ISO C more easily comprehensible.



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