Table 8: Error norms and rate of convergence for various numbers of grid points at .

ROC ROC

0.43 0.98
0.35 0.31 0.88 0.16
0.22 1.19 0.52 1.35
0.17 0.92 0.39 1.02
0.14 0.88 0.30 1.20
0.10 0.72 0.19 0.98