TABLE 1B.

Computed with 48 points on the boundary, at the same selected points as in Table 1 A, computed to be compared with the exact values, are the rate of convergence when compared to the coarser grid

Node	w1	w2	e1	e2	r1	r2	q1	q2
1	2.000149	−0.000091	1.49(−4)	0.91(−4)	5.63	0.53	8.40	0.5
2	1.931862	−0.518158	1.04(−5)	5.20(−4)	9.25	0.94
3	1.731796	−1.001094	2.55(−4)	1.09(−3)	3.84	1.07	1.76	5.03
4	1.413760	−1.416040	4.54(−4)	1.83(−3)	0.65	0.62
5	0.999445	−1.734516	5.55(−4)	2.47(−3)	0.96	0.85	4.33	1.49
6	0.517242	−1.934964	3.96(−4)	3.11(−3)	1.55	1.20

are the rate of convergence when a grid of 24 points is compared to a grid with 12 points. For example, the computed error in the fourth column means that The rates of convergence are when compared to the coarser grid. The computed rate of the convergence is defined by where are the errors in the traction for two different grids with meshes Here are the meshes that correspond to 24 and 48 points, respectively. are the rate of convergence when a grid of 24 points is compared to a grid with 12 points.