h

$E_{\infty }\left(h,\tau \right)$

order1

CPU

1/2

2.1101e−04

*

0.001378s

1/4

5.6321e−05

1.9056

0.001461s

1/8

1.4438e−05

1.9639

0.002593s

1/16

3.6340e−06

1.9902

0.021669s

1/32

9.1009e−07

1.9975

0.066269s

1/64

2.2790e−07

1.9976

0.912329s