[Octave-bug-tracker] [bug #53258] test pcg.m fail

[Rik]

Follow-up Comment #12, bug #53258 (project octave):

Because the behavior wasn't documented correctly.  It used to say that the
default value for maximum iters was 20.  In fact, it is more complicated and
it is 


min (rows (b), 20)


In this case, b has 10 rows but 10+1 (11) iterations is not always enough to
guarantee convergence.  I bumped it to 2*10 (20) iterations and I didn't see
any failures after 40,000 test iterations.


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