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

[Nicholas Jankowski]

Follow-up Comment #16, bug #62412 (project octave):

ok. if that's the case than for quadgk then just changing the final warning
to:


  if ((nargout > 1) && (err > max (abstol, reltol * abs (q)))))
    warning (warn_id,
             "quadgk: Error tolerance not met.  Estimated error %g", err);
  endif


simple patch for that attached.

there are other warnings, but they all terminate iteration as well. should to
stay even when the end tolerance warning is turned off? Includes:
"quadgk: maximum interval count (%d) exceeded"
and 
"quadgk: non-finite integrand encountered")


(file #53177)

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