dolfin team mailing list archive

["Garth N. Wells" <g.n.wells@xxxxxxxxxxxxxxx>]

Quoting Anders Logg <logg@xxxxxxxxx>:

> Do we need any approximate Jacobians for solving nonlinear PDEs since
> we assemble the Jacobian directly (or its action)?
> 

Only if we're too lazy to linearise by hand.

I've changed the nonlinear solver and it looks much cleaner and is much simpler
to follow.

Garth

> Eventually, FFC will compute the Jacobian for you so then you can just
> specify the (nonlinear) form and have everything else generated
> (Jacobian, dual, a posteriori error estimate).
> 
> /Anders
> 
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