A Numerical Approach for Diffusion-Dominant Two-Parameter Singularly Perturbed Delay Parabolic Differential Equations

Table 7

Comparison of the error estimate and rate of convergence of Example 1, for and .

Method		32	64	128	256	512
		8	16	32	64	128
[32]		4.3817e − 02	1.670e − 02	7.4019e − 03	3.7490e − 03	1.9008e − 03
		1.3875	1.1784	0.9804	0.9798
[33]		1.4464e − 02	5,6157e − 03	2.0072e − 03	6.3177e − 04	1.8123e − 04
		1.3649	1.4843	1.6677	1.8016
[34],		1.9854e − 02	1.0658e − 02	5.5313e − 03	2.8189e − 03	1.4231e − 03
		0.8924	0.9463	0.9725	0.9861
[34],		1.4517e − 03	3.6060e − 04	9.0006e − 05	2.2492e − 05	5.6226e − 06
		2.0092	2.0023	2.0007	2.0001
The present		3.0452e − 02	1.9312e − 04	4.8256e − 05	1.2064e − 05	3.0158e − 06
		7.3009	2.0007	2.0001	2.0000