Changeset [687bcc241f237fcd3ddb5db95d16c6f2a93efe6b] by Jed Brown

Frequency option and automated tests

• Add option for frequency of fs/tests/ex1 -exact 0.

• Implement automatic tests that pretty much confirm spectral convergence. It would be very unlikely to get 6 or 7 digits of this very screwy transcendental function without exponential convergence. These tests are automatically run by make test'.

• Notice that Jacobi preconditioning for the mass matrix is usually stronger than are proper' preconditioners. Of course, this is very unlikely to hold for elliptic operators.

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