Ahmed, > I want to implement neumann boundary condition in deal.ii, suppose > that I have a rectangle so at the first edge I want o apply neuman and > the second and the third dirichlet and the forth edge robin boundary > condition.
Did you take a look at the results section of step-3 for Neumann boundary conditions? For Robin, you need to modify the bilinear form and right hand side by boundary terms. This is also explained in some of the tutorial programs. W. _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
