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[Octave-bug-tracker] [bug #54383] accuracy issues with betainc
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #54383] accuracy issues with betainc |
Date: |
Thu, 26 Jul 2018 15:25:09 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0 |
Update of bug #54383 (project octave):
Status: None => In Progress
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Follow-up Comment #1:
The tolerances were chosen based on the most restrictive values that still
passed on Michele Ginesi's computer. Some of the tolerances were relaxed in
this cset (https://hg.savannah.gnu.org/hgweb/octave/rev/f80e68529bbf) in order
to have the test suite pass on other i386 platforms. Mike was the author of
that cset. I think it would probably be fine to just increase the tolerance
for this single test. The two tests are
%!assert <54383> (betainc (0.99, 20, 30, "upper"), 1.5671643161872703e-47,
-5e-14);
%!assert (betainc (0.999, 20, 30, "upper"), 1.850806276141535e-77, -7e-14);
and the second one already has a larger tolerance.
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