Table 3: The maximum norm error and the temporal accuracy of for Example 5.

-ADI scheme ( )BD-ADI scheme ( )
error order error order

1/20 1/2 0.835782 1/3 1.247710
1/40 0.906370 1.295329
1/80 0.947443 1.315075
1/160 0.970534 1.325682
1/320 0.983962 1.335982
1/640

1/20 2/3 1.1921721/2 1.423830
1/40 1.262779 1.463914
1/80 1.297640 1.481554
1/160 1.317329 1.496663
1/320 1.333601 1.524750
1/640

1/20 3/4 1.063599 2/3 1.112230
1/40 1.128142 1.171085
1/80 1.161548 1.211600
1/160 1.180856 1.239224
1/320 1.191836 1.255314
1/640