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[S Wood <question139524@xxxxxxxxxxxxxxxxxxxxx>]

Question #139524 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/139524

S Wood requested for more information:
Hi Andres,

Sorry I am new to dofin and fenics, but I was wondering if you can
clarify what you mean by "update"? Here is a segment of the code I have
and I don't get the plot on the same loop!

while t <= T: 
    u, v = TrialFunction(V), TestFunction(V)
    Fuv = v*u*dx + ......
    u = Function(V)
    F = action(Fuv, u)
    J = derivative(F, u, du)

    # Solve nonlinear variational problem
    problem = VariationalProblem(J, F, bc, nonlinear=True)
    newton =  problem.parameters['newton_solver']
    newton["maximum_iterations"] = 40
    problem.solve(u)

    # Plot u
    plot(u)


    # March in time
    t += dt 
    u_prev.assign(u)


Thank you very much.

S.

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