Grid
Crank Nicolson
Douglas
Rate 
Rate 
Rate 
31 × 31
-
-
-
-
-
-
51 × 51
2.1882
3.0712
3.1098
2.881
3.0941
3.8172
81 × 81
2.1761
3.1971
3.2910
2.5619
3.4218
3.8971
101 × 101
1.4097
3.3468
4.0118
2.9431
3.7689
3.9981
| Grid | Crank Nicolson | Douglas | ||||
| Rate | Rate | Rate |
|
|
| |
| 31 × 31 | - | - | - | - | - | - |
| 51 × 51 | 2.1882 | 3.0712 | 3.1098 | 2.881 | 3.0941 | 3.8172 |
| 81 × 81 | 2.1761 | 3.1971 | 3.2910 | 2.5619 | 3.4218 | 3.8971 |
| 101 × 101 | 1.4097 | 3.3468 | 4.0118 | 2.9431 | 3.7689 | 3.9981 |