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Easiest way to approximate condition number

To: dolfin-dev@xxxxxxxxxx
From: Jehanzeb Hameed <jhameed2@xxxxxxxxxxxx>
Date: Wed, 26 Aug 2009 12:30:27 -0500
Delivered-to: dolfin-dev@xxxxxxxxxx
Sender: jehanzeb.hameed@xxxxxxxxx

Hello,

I am trying to approximate the condition number of a symmetric
positive definite stiffness matrix. Currently I am trying to use slepc
to approximate this, but is there a better way? Also, in Slepc, I cant
seem to use lanczos as Petsc backend thinks the matrix is
non-hermitian. Any tips on how to get around this one?

Thanks,
-Jehanzeb