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Posted to issues@commons.apache.org by "Dmitriy V. Golovashkin (Jira)" <ji...@apache.org> on 2020/10/29 15:57:00 UTC

[jira] [Updated] (NUMBERS-153) digamma and trigamma throw stack overflow exceptions

     [ https://issues.apache.org/jira/browse/NUMBERS-153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dmitriy V. Golovashkin updated NUMBERS-153:
-------------------------------------------
    Summary: digamma and trigamma throw stack overflow exceptions  (was: digamma and trigamma throw stock overflow exceptions)

> digamma and trigamma throw stack overflow exceptions
> ----------------------------------------------------
>
>                 Key: NUMBERS-153
>                 URL: https://issues.apache.org/jira/browse/NUMBERS-153
>             Project: Commons Numbers
>          Issue Type: Bug
>          Components: gamma
>    Affects Versions: 1.0-beta1
>            Reporter: Dmitriy V. Golovashkin
>            Priority: Major
>             Fix For: 1.0
>
>
> {color:#0033b3}java.lang.StackOverflowError{color}
> {color:#0033b3}double {color}{color:#000000}x {color}= -{color:#1750eb}10_000{color};
> {color:#000000}Gamma{color}.digamma({color:#000000}x{color});
> {color:#000000}Gamma{color}.trigamma({color:#000000}x{color});
> It would be nice if the methods returned NaN / Infinity, rather than abort calculations (due to recursion gone wild).  Please, see the initial report in Commons Math3:
> https://issues.apache.org/jira/browse/MATH-1561
>  



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