Inverse Matrix Function appears a bit wonky

[John W. Eaton]

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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