Accelerated Circulant and Skew Circulant Splitting Methods for Hermitian Positive Definite Toeplitz Systems

Table 1

Numerical results of Example 5.1.

𝑛	𝜆min	𝜇min	IT			CPU
			CG	CSCS	ACSCS	CG	CSCS	ACSCS
16	0.4183	0.5825	8	35	37	0.0077	0.0101	0.0095
32	0.4801	0.5199	20	39	39	0.0085	0.0106	0.0100
64	0.4951	0.5049	37	40	39	0.0098	0.0108	0.0106
128	0.4988	0.5012	55	40	40	0.0108	0.0115	0.0128
256	0.4997	0.5003	67	40	40	0.0138	0.0142	0.0144
512	0.4991	0.5001	70	40	40	0.0189	0.0203	0.0205
1024	0.5000	0.5000	71	40	40	0.0283	0.0316	0.0292