m

Implicit scheme

ASE-I scheme

Order2

Order2

20

2.593343e−3

――

4.309022e−3

――

40

6.548375e−4

1.985604

1.096470e−3

1.974494

80

1.667856e−4

1.973142

2.386357e−4

2.199984

160

4.221036e−5

1.982326

3.733635e−5

2.676157

320

1.057340e−5

1.997158

9.359062e−6

1.996145