Changeset [0abf8e19db86e029a09216e53677b2529848f6c3] by Jed Brown

Check residuals at quadrature points, report L_1,L_2,L_\infty norms.

Spectral convergence is observed, yay! The condition number of the mass matrix really does grow with spectral order. Looks like we need to assemble a matrix to precondition it (duh).

Signed-off-by: Jed Brown jed@59A2.org http://github.com/jedbrown/dohp/...