Numerical Method for American Option Pricing under the Time-Fractional Black–Scholes Model

Table 2

The computational time for varying and .

0.1	0.4	0.5	0.7
16	2	0.0182	0.0172	0.0185	0.0168
32	4	0.0185	0.0181	0.0197	0.0215
64	8	0.0239	0.0209	0.0232	0.0229
128	16	0.1162	0.1065	0.0963	0.1094
256	32	0.6611	0.6739	0.6622	0.6709
512	64	9.5017	9.5454	9.8840	9.6247
1024	128	195.4311	181.0966	181.579	182.3388