bugGNU Scientific Library - Bugs: bug #32306, sign error in gsl_sf_hyperg_2F1

 
 

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bug #32306: sign error in gsl_sf_hyperg_2F1

Submitted by:  -Deleted Account- <bjg>
Submitted on:  Mon 31 Jan 2011 04:47:44 PM UTC  
 
Category:  Accuracy problem Severity:  3 - Normal
Operating System:  Status:  Confirmed
Assigned to:  None Open/Closed:  Open
Release:  1.14

Mon 31 Jan 2011 04:47:44 PM UTC, original submission:

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

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

-Deleted Account- <bjg>

 

Attached Files
file #22573:  hyp.c added by bjg (354B - text/x-csrc - test program)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by bjg
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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2011-01-31 bjg Attached File- => Added hyp.c, #22573
        Carbon-Copy- => Added -email is unavailable-

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