Method

N = 72 M = 32

N = 144 M = 64

N = 288 M = 128

N = 576 M = 256

N = 1152

M = 512

Present method

0.00566

0.00796

0.12430

0.32683

1.68447

Ref. [5]

0.03120

0.09360

0.32760

1.21681

4.83603