[Bug-gsl] [bug #32306] sign error in gsl_sf_hyperg_2F1

[Brian Gough]

URL:
  <http://savannah.gnu.org/bugs/?32306>

                 Summary: sign error in gsl_sf_hyperg_2F1
                 Project: GNU Scientific Library
            Submitted by: bjg
            Submitted on: Mon Jan 31 16:47:44 2011
                Category: Accuracy problem
                Severity: 3 - Normal
        Operating System: 
                  Status: Confirmed
             Assigned to: None
             Open/Closed: Open
                 Release: 1.14
         Discussion Lock: Any

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Details:

There's a sign error discontinuity in gsl_sf_hyperg_2F1(-0.5,1.5,1,x) for
x~=~0.5

address@hidden:~/tmp$ ./a.out 
0.5 -0.539352 8.64471e-15
0.5 0.539353 6.22896e-14




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File Attachments:


-------------------------------------------------------
Date: Mon Jan 31 16:47:44 2011  Name: hyp.c  Size: 354B   By: bjg
test program
<http://savannah.gnu.org/bugs/download.php?file_id=22573>

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