N

$L_{1}error\left({10}^{-4}\right)$

$L_{1}order$

$L_{\infty }error\left({10}^{-4}\right)$

$L_{\infty }order$

40

7.6891

12.053

80

1.9290

1.995

3.0305

1.992

160

0.4828

1.998

0.7583

2.000

320

0.1207

2.000

0.1894

2.001