ABSTRACT
The Euclidean nonn of the errors in Table 8.8 is 1.766412 C. The Euclidean nonn of the errors in Table 8.9 at the three common grid points is 0.468057 C. The ratio of the nonns is 3.77. The ratios of the individual errors at the three common points in the two grids are 3.83,3.80, and 3.75. Both of these results demonstrate that the method is second order.
