Progressive Iterative Approximation for Extended B-Spline Interpolation Surfaces

Table 4

Interpolation errors of PIA in Examples 3 and 4 with different .

	Example 3			Example 4
	0	1.48e − 03	1.24e − 03	9.27e − 04	1.35e − 03	1.12e − 03	8.42e − 04
1	4.87e − 05	3.39e − 05	1.91e − 05	4.71e − 05	3.27e − 05	1.84e − 05
2	1.94e − 05	1.12e − 05	4.75e − 06	1.88e − 05	1.09e − 05	4.58e − 06
3	9.67e − 06	4.67e − 06	1.48e − 06	9.37e − 06	4.52e − 06	1.43e − 06
4	5.41e − 06	2.18e − 06	5.17e − 07	5.24e − 06	2.11e − 06	5.00e − 07
5	3.70e − 06	1.24e − 06	2.21e − 07	3.59e − 06	1.20e − 06	2.14e − 07
10	6.22e − 07	8.39e − 08	3.55e − 09	6.04e − 07	8.13e − 08	3.43e − 09
20	3.37e − 08	7.35e − 10	1.76e − 12	3.27e − 08	7.11e − 10	1.69e − 12
50	2.09e − 11	1.21e − 13	3.15e − 16	1.67e − 11	7.89e − 14	1.99e − 15