Fractional-Order Hidden Attractor Based on the Extended Liu System

Table 1

LEs of system (6) with different sampling and observation time for a = 10, b = 40, c = 2.5, k = 1, h = 4,  = 5, d = 20, and m = 1.

Initial condition	Observation time	Sampling time	LEs	Sum of LEs	Sign of the LEs
2.2, 2.4, 0.8, 0	500	0.02	1.4230, 0.2312, −0.0032, −13.1211	−11.4611	(+,+,−,−)
2.2, 2.4, 0.8, 0	2000	0.02	1.3776, 0.2279, −0.0006, −13.1103	−11.5054	(+, +, 0,−)
2.2, 2.4, 0.8, 0	5000	0.02	1.3751, 0.2181, −0.0003, −13.1017	−11.5088	(+, +, 0, −)
2.2, 2.4, 0.8, 0	500	0.03	1.4202, 0.2273, −0.0072, −13.1405	−11.5002	(+, +, −, −)
2.2, 2.4, 0.8, 0	2000	0.03	1.4135, 0.2071, −0.0035, −13.1183	−11.5012	(+, +, ≈0, −)
2.2, 2.4, 0.8, 0	5000	0.03	1.4237, 0.2065, −0.0008, −13.1156	−11.4862	(+, +, 0, −)