GNU 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
Submitter: | -Deleted Account- <bjg> | ||
Submitted: | 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 |
Attached Files
Depends on the following items: None found
Items that depend on this one: None found
Carbon-Copy List
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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Corresponding source code
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