New 4(3) Pairs Diagonally Implicit Runge-Kutta-Nyström Method for Periodic IVPs

Table 2

The DIRKN4(3)6New method.

−0.2031515178	0.02063526960
1/2−√3/6	0.001693829777	0.02063526960
1/2+√3/6	−0.0040532720	0.2944222365	0.02063526960
	0	1/4+√3/12	1/4−√3/12
	0	1/2	1/2
	0.0039526263	0.3875473737	0.1085
	0	1/2	1/2