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Inverse Matrix Function appears a bit wonky
From: |
John W. Eaton |
Subject: |
Inverse Matrix Function appears a bit wonky |
Date: |
Wed, 3 Nov 2004 16:13:47 -0500 |
On 3-Nov-2004, John W. Eaton <address@hidden> wrote:
| If there is no warning on your system, I suspect your
| version of Octave is linked with some version of LAPACK that does not
| return the proper error code when a singular matrix is detected during
| the factorizaion leading to the computation of the inverse.
Oops. Now I see that if you request an output:
x = inv (x)
the warning is suppressed, but if you don't:
inv (x)
(result assigned to "ans"), then you should see the warning. That's
an error. The warning should only be supressed if you request 2
output arguments (the inverse AND rcond).
I'll fix this for 2.1.61.
Thanks,
jwe
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