antisymmetric jacobian for SNES?

[Matthew Knepley]

On Tue, Sep 16, 2008 at 12:58 PM, Sean Dettrick <sdettrick at gmail.com> wrote:
> Hello,
>
> I am looking at finite differencing a non-linear problem which has the
> square of a gradient in it.  It appears to lead to an antisymmetric Jacobian
> matrix.  Can anyone comment on whether SNES can handle an antisymmetric
> Jacobian?  If not, then could I just use snes_fd ?

There are no inherent symmetry limitations.

  Matt

> Thanks,
> Sean
-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which
their experiments lead.
-- Norbert Wiener