Table 2: Error estimate in maximum norm when .

Computational cost Reduction Computational cost Reduction

1 0.1710 0.0535 0.3270 0.1342
2 0.5920 0.0254 2.11 1.1680 0.0641 2.10
4 2.3840 0.0124 2.05 4.6590 0.0313 2.05
8 9.8810 0.0061 2.03 19.7440 0.0154 2.03