[jira] [Resolved] (MATH-1066) Add Bessel functions of the first kind

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

     [ https://issues.apache.org/jira/browse/MATH-1066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Phil Steitz resolved MATH-1066.
-------------------------------
    Resolution: Fixed

Revised patch committed in f80f577748c0dbde45d24654247a82a7121d456c and 540aa2e7ed7c0c0add1daad7fb548e156435e0a2

Changes to the patch:

* Eliminated some needless constants from the Fortran translator
* Made variables that could be final, final
* Simplified some logic
* Improved javadoc
* Externalized strings
* Made exceptions more precise
* Added tests for exceptions
* Made the results class and more complete method public

I did not change variable names, as keeping the same names will make troubleshooting problems / comparing results with the original Fortran code easier.

Thanks for the patch!

> Add Bessel functions of the first kind
> --------------------------------------
>
>                 Key: MATH-1066
>                 URL: https://issues.apache.org/jira/browse/MATH-1066
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 3.2
>            Reporter: Brian Wignall
>            Assignee: Phil Steitz
>              Labels: newbie, patch, special-functions
>             Fix For: 3.4
>
>         Attachments: patch_besselj
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> According to the Wish List, special functions are a priority item to be added to ACM. As Bessel functions (http://en.wikipedia.org/wiki/Bessel_function) are listed by name, I have translated some Fortran code from Netlib -- specifically, http://www.netlib.org/specfun/rjbesl -- for Bessel functions of the first kind.



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