[Octave-bug-tracker] [bug #46683] test svds fails

[Marco Caliari]

Follow-up Comment #10, bug #46683 (project octave):

For point #3, it might be that I can write a fortran test to check the wrong
behavior of ARPACK<=3.1.5. My idea is something like


i = 0;
while 1
  fix the random seed to i;
  generate the initial random vector x0
  run arpack to compute eigenvalues and eigenvectors for a possibly small
case
  if the dneupd bug is triggered, print x0, break
  else i++
end


In principle, now I have an initial vector x0, which can be hard-coded, which
triggers the bug.


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