Nonpolynomial Spline Method for Singularly Perturbed Time-Dependent Parabolic Problem with Two Small Parameters

Table 2

The comparison of the rate of convergence of the proposed scheme for Example 1 where and different values of .

Current method after extrapolation
	1.9411	1.9706	1.9848	1.9924	1.9961	1.9967
	1.9367	1.8483	2.1032	1.9918	1.9960	1.9987
	1.9373	1.9676	1.9834	1.9917	1.9958	1.9989
	1.9370	1.9656	1.9854	1.9917	1.9958	1.9975
	1.9370	1.9675	1.9835	1.9917	1.9959	1.9979
Current method before extrapolation
	0.9482	0.9738	0.9871	0.9935	0.9967	0.9984
	0.9513	0.9753	0.9875	0.9938	0.9969	0.9985
	0.9517	0.9757	0.9877	0.9939	0.9969	0.9985
	0.9518	0.9757	0.9878	0.9939	0.9969	0.9985
	0.9518	0.9758	0.9878	0.9939	0.9969	0.9985
Method in [30]
	1.19	1.11	1.06	1.03	1.01	1.01
	1.20	1.11	1.06	1.03	1.02	1.01
	1.20	1.11	1.06	1.03	1.02	1.01
	1.20	1.11	1.06	1.03	1.02	1.01
	1.20	1.11	1.06	1.03	1.02	1.01