Table 2: The maximum error and temporal convergence order by Numerical Scheme II (see (61)).

α The maximum errorThe temporal convergence order

1.1
1.8470
1.6287
1.0846

1.2
1.9210
1.7879
1.3919

1.3
1.9454
1.8686
1.5943

1.4
1.9572
1.9111
1.7193

1.5
1.9678
1.9526
1.8581

1.6
1.9740
1.9800
1.9612

1.7
1.9741
1.9845
1.9809
1.8
1.9724
1.9824
1.9754

1.9
1.9699
1.9777
1.9595