Table 1.

Error norm ||L ₂|| at some selected time steps for solving KiSS Eq. (34)

Method	Time step (k)	||L 2||	CPU time (s)
ETDM4	1/32	0.2150	1.5086
	1/64	0.0301	1.5467
	1/256	3.3910e−004	1.7189
	1/1024	3.4784e−006	3.8817
ETDM5	1/32	0.2170	1.9896
	1/64	0.0195	2.0277
	1/256	1.7793e−005	2.3538
	1/1024	1.7923e−006	4.6010
ETDM6	1/32	0.0664	2.0405
	1/64	8.5299e−004	2.0515
	1/256	4.2840e−004	2.2500
	1/1024	1.8248e−007	8.2387
ETDADAMS4	1/32	0.0050	1.4850
	1/64	0.0028	1.5511
	1/256	1.3334e−004	1.8339
	1/1024	2.3963e−006	4.4020
ETDRK4	1/32	7.2013e−004	1.1146
	1/64	5.0921e−005	1.0236
	1/256	3.5038e−007	1.3198
	1/1024	4.4086e−009	3.8726