[Octave-bug-tracker] [bug #60357] Failing test for `qz` with LAPACK 3.9.1

[Rik]

Update of bug #60357 (project octave):

                  Status:               Confirmed => Ready For Test         

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Follow-up Comment #19:

I checked in a change
(http://hg.savannah.gnu.org/hgweb/octave/rev/06f4bb661d96) so that qz() always
returns the correct number of eigenvalues.  When LAPACK doesn't calculate an
eigenvalue, because the rank of the matrix is lower than the size of the
matrix, then I changed qz() to return Inf.  This matches what the eig()
function does for the same situation which at least is now consistenct.  That
is, the eigenvalues calculated by eig() or by qz() are the same.

I changed the BIST tests to reflect the new reality.  However, my guess is
that the test still fails with LAPACK 3.9.1 because the eigenvalue returned by
LAPACK is large (3x10^15), but not actually Inf.  In any case, I'm marking as
"Ready for Test" so Markus can check how the new code behaves with his system.


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