fekete: solve the coefficients, tests pass
fekete: solve the coefficients, tests pass

certik/hermes1d,certik/hermes1d-llnl,certik/hermes1d,hpfem/hermes1d,hpfem/hermes1d,certik/hermes1d-llnl,certik/hermes1d,hpfem/hermes1d,certik/hermes1d-llnl