Re: Determinant of a particular symmetric matrix

From: Duncan Muirhead <noone@xxxxxxxxxxxx>
Date: Fri, 27 Jan 2006 15:05:12 +0000

As the other posters have pointed out there are such matrices that are
singular. You need to know more about the off diagonals. For example if in
each column the sum of the off diagonals is less than 1 then your matrix
is invertible (for then you can write it as I + S where the condition
above is that the infinity norm of S is less than 1)
Duncan

.

References:
- Determinant of a particular symmetric matrix
  - From: sajesse
- Re: Determinant of a particular symmetric matrix
  - From: Zdislav V. Kovarik

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