A Family of Trigonometrically Fitted Enright Second Derivative Methods for Stiff and Oscillatory Initial Value Problems

Table 4

Results with , for Example 18.

	ESDM				Nguyen et al. [16]
For we have
	EM1	EM2	EM3	EM4	Nguyen
	6	6	6	6	—
Err	6.6 (−5)	3.8 (−5)	7.1 (−5)	1.2 (−4)	—
	10	10	10	10	10
Err	1.9 (−5)	1.3 (−6)	4.1 (−6)	8.1 (−7)	5.4 (−6)
	27	27	27	27	19
Err	1.2 (−6)	8.2 (−8)	3.1 (−8)	4.3 (−9)	8.3 (−8)
	32	32	32	32	23
Err	7.1 (−7)	6.3 (−8)	1.3 (−8)	1.9 (−9)	4.5 (−4)
For we have
	EM1	EM2	EM3	EM4	Nguyen
	6	6	6	6	13
Err	6.6 (−5)	3.8 (−5)	7.1 (−5)	1.3 (−5)	1.0 (−6)
	16	16	16	16	16
Err	5.3 (−6)	6.2 (−7)	1.8 (−7)	2.5 (−8)	1.6 (−7)
	20	20	24	24	21
Err	2.8 (−6)	3.2 (−7)	5.3 (−8)	6.5 (−9)	7.0 (−8)