bugGNU Scientific Library - Bugs: bug #47401, Bessel K0/K1

 
 

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bug #47401: Bessel K0/K1

Submitter:  Patrick Alken <psa>
Submitted:  Sun 13 Mar 2016 07:46:50 PM UTC
   
 
Category:  Runtime error Severity:  3 - Normal
Operating System:  Status:  Fixed
Assigned to:  None Open/Closed:  Closed
Release: 

Sun 13 Mar 2016 07:49:34 PM UTC, comment #2: 

Fixed in commit 6213d33148b58ad317f4ed286328ee549574275f

Patrick Alken <psa>
Group administrator
Sun 13 Mar 2016 07:47:38 PM UTC, comment #1: 

from pavel =at= holoborodko =dot= com

Patrick Alken <psa>
Group administrator
Sun 13 Mar 2016 07:46:50 PM UTC, original submission:  

I am sending you my findings about bessel_k0/bessel_k1
functions. Both suffer from cancellation near x=2, which is easily fixable.

I include PDF with description and patch for bessel_k0.c
The bessel_k1.c can be changed the same way.

Patrick Alken <psa>
Group administrator

 

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Attached Files
file #36624:  GSL-K01.pdf added by psa (301KiB - application/pdf)
file #36623:  bessel_k0.patch added by psa (3KiB - text/x-patch)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-03-13 psa StatusNone Fixed
        Open/ClosedOpen Closed
    2016-03-13 psa Attached File- Added bessel_k0.patch, #36623
        Attached File- Added GSL-K01.pdf, #36624

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