ok, John's explanation was very helpful, did the math (a few times :)
and have a better grasp on the problem then I did before, sorry about that.
What now confuses me is whether or not EulerSolver with theta=0.5 is
actually Crank-Nicolson. It makes sense to me that Euler2Solver with
theta=0.5 i
On Thu, Oct 2, 2008 at 3:12 PM, Nasser Mohieddin Abukhdeir
<[EMAIL PROTECTED]> wrote:
> Just to clarify things, my understanding of the backwards Euler method that
> is implemented now is such that for the initial u' = f(theta*u_new +
> (1-theta)*u_old), so the first iteration of the nonlinear solv
Just to clarify things, my understanding of the backwards Euler method
that is implemented now is such that for the initial u' = f(theta*u_new
+ (1-theta)*u_old), so the first iteration of the nonlinear solver
should be equivalent to an explicit solve, assuming u_new = u_old during
the first st
Hello all:
After some enlightening conversations with Roy, I am going to be
implementing a predictor/corrector AdaptiveTimeSolver class that does
the following:
1) An explicit solve (just an EulerSolver step with theta=0) yields the
"predictor" which is stored.
2) The explicit solve soluti
On Thu, 2 Oct 2008, Nasser Mohieddin Abukhdeir wrote:
> I ran a simulation with the newly reformulated class structure, everything
> is peachy. I'll get started on this PCAdaptiveTimeSolver over the weekend,
> should I send an email to the devel list detailing this change and the game
> pla
