[Octave-bug-tracker] [bug #62412] quadcc does not warn when quadrature fails to converge

[Rik]

Follow-up Comment #21, bug #62412 (project octave):

Forgot to document this, but I reviewed your patch, made a few changes for
Octave coding conventions, and checked it in here:
https://hg.savannah.gnu.org/hgweb/octave/rev/347fd0653508.

The issue in the title of the bug report is now resolved.

Further questions which were discussed, but I didn't see a definitive answer
on are:

1) Should quadgk be changed to not emit a warning about convergence if the
second output ERR is requested?  This would make it consistent with quadcc. 
Nicholas already has a patch for this.

2) Should integral.m be changed to always call the underlying quadrature
routine with 2 outputs and then issue a consistently worded warning message? 
I will note that the language from the quadgk warning was copied into the
quadcc message so they are consistent right now already.

3) Should a new feature request be filed on Savannah to modify quadv.m to
return an estimate of the error so that it would be consistent with other
quadrature routines?


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