Hi there As an initial attempt, I am trying to use fenics to compute the resonant modes of a rectangular waveguide - and as such I need to solve an eigenvalue problem of the form [A]x = lambda[B]x where x represents a vector of coefficients of the basis functions used to calculate the entries of the stiffness ([A]) and mass ([B]) matrices.
It is easy to assemble the matrices, and I have solved the eigenvalue problem using eigs() ... but now I have the calculated coefficients and I would like to plot the weighted sum of the basis functions (the finite element solution). Any help on the matter would be much appreciated. Thanks Evan _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
