| Solution Comparison | |||
| (Typical mesh points) | CN | ADI | Exact |
| (−0.3, −0.3) | −0.50000 | −0.50000 | −0.5000 |
| (−0.45, −0.45) | −0.4998 | −0.50000 | −0.5000 |
| (−0.3, −0.45) | −0.4997 | −0.4899 | −0.5000 |
| (−0.35, −0.35) | −0.4887 | −0.4897 | −0.5000 |
| (−0.25, 0.25) | −0.4886 | −0.4987 | −0.5000 |
| (−0.2, −0.2) | −0.4886 | −0.4787 | −0.5000 |
| (−0.2, −0.3) | −0.4998 | −0.4997 | −0.4998 |
| (0.2, 0.2) | −0.5000 | −0.4999 | −0.5000 |
| (0.2, 0.35) | −0.4546 | −0.4447 | −0.4847 |
| (0.3, 0.2) | −0.4999 | −0.4999 | −0.5000 |
| (0.25, −0.25) | −0.4889 | −0.4776 | −0.4998 |
| (0.4, 0.4) | −0.4998 | −0.5998 | −0.4998 |