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Re: A * x = 0 for singular matrix

From: Jordi Gutierrez Hermoso
Subject: Re: A * x = 0 for singular matrix
Date: Fri, 23 Feb 2007 18:06:07 -0600

On 23/02/07, lipschitz82 <address@hidden> wrote:
By ~= 0 I mean approximately singular. It is singular up to my level of

Actually, the determinant is a very bad numerical measure of the
singularity of a matrix. Very unsingular matrices can have small
determinants and viceversa. Use the condition number instead.

- Jordi G. H.

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