[Bug-gsl] [bug #43809] bug in gsl_sf_hyperg_1F1

[Patrick Alken]

URL:
  <http://savannah.gnu.org/bugs/?43809>

                 Summary: bug in gsl_sf_hyperg_1F1
                 Project: GNU Scientific Library
            Submitted by: psa
            Submitted on: Fri 12 Dec 2014 07:23:29 PM GMT
                Category: Runtime error
                Severity: 3 - Normal
        Operating System: 
                  Status: None
             Assigned to: None
             Open/Closed: Open
                 Release: 
         Discussion Lock: Any

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Details:

from weibinli =at= gmail =dot= com

There seems a bug in the function “gsl_sf_hyperg_1F1" in version 1.16.

See the attached test program, in which the generated value is correct when
ri=1000 while is wrong when ri is large (ri=4000 in the program).
The result was compared with Mathematica. 

When I tried version 1.9, which somehow gives the correct result.
However I am not sure how this happens in



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File Attachments:


-------------------------------------------------------
Date: Fri 12 Dec 2014 07:23:29 PM GMT  Name: gsl_hyperg.c  Size: 358B   By:
psa

<http://savannah.gnu.org/bugs/download.php?file_id=32656>
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Date: Fri 12 Dec 2014 07:23:29 PM GMT  Name: ATT00001.txt  Size: 84B   By: psa

<http://savannah.gnu.org/bugs/download.php?file_id=32657>

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