bugGNU Octave - Bugs: bug #54383, accuracy issues with betainc

 
 

bug #54383: accuracy issues with betainc

Submitted by:  John W. Eaton <jwe>
Submitted on:  Thu 26 Jul 2018 12:59:26 PM UTC  
 
Category:  Octave Function Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Inaccurate Result
Status:  In Progress Assigned to:  None
Originator Name:  Open/Closed:  Open
Release:  dev Operating System:  Solaris/SunOS

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Mon 30 Jul 2018 11:35:07 PM UTC, comment #2:

Is this still failing? Go ahead and just up the tolerance. Try -7e-14 to start, and -8e-14 if that doesn't work.

Rik <rik5>
Project Administrator
Thu 26 Jul 2018 07:25:09 PM UTC, 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

and the second one already has a larger tolerance.

Rik <rik5>
Project Administrator
Thu 26 Jul 2018 12:59:26 PM UTC, original submission:

The following test fails on Solaris:

John W. Eaton <jwe>
Project Administrator

 

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