Table 2: Convergence rate in space for (46) with and .

-norm -norm c. rate CPUT (seconds)

0.001 1/4 0.2294 3.0611 20.35
0.001 1/16 5.9763 8.0381 1.9291 21.85
0.001 1/32 1.5067 2.0442 1.9753 26.68
0.001 1/64 3.7356 5.0966 2.0039 32.72
0.001 1/128 8.9129 1.2198 2.0629 41.03