N

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

$L_{1}order$

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

$L_{\infty }order$

40

7.7883

12.209

80

1.9659

1.986

3.0882

1.983

160

0.4936

1.994

0.7752

1.994

320

0.1237

1.997

0.1941

1.998