On Tue, Apr 25, 2023 at 8:53 AM Stefano Carli <[email protected]>
wrote:
> Dear PETSc developers,
>
>
>
> I’m using PETSc version 3.14.1 coupled to a Fortran code, and I was
> wondering if there is a way of obtaining in output, possibly at each
> iteration, the estimated Hessian matrix for the BQNLS method.
>
It is represented as the outer product of sets of vectors. Is that what you
want?
Thanks
Matt
> Thank you in advance and best regards,
>
> Stefano Carli
>
--
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
https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
