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det : singular matrix warning
From: |
Rolf Fabian |
Subject: |
det : singular matrix warning |
Date: |
Wed, 10 Jan 2001 13:05:44 +0100 |
Hi,
Currently, I'm frequently using determinants.
The following feature is annoying:
det with a singular input matrix prints a warning to the screen terminal
If det is called in an e.g. iterative program, a lot of such warnings may
be displayed.
:)det(reshape(1:9,3,3))
warning: det: matrix singular to machine precision, rcond = 0
ans = 0
How to switch-off such warnings ?
I didn't find any hint in the manuals.
BTW, why is such a warning displayed at all ?
To me, it doesn't make any sense because
if det(A) returned zero, I'll know that A is singular.
What's the reason to warn me in addition?
Bye
Rolf
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