Number of nodal points | 25 | 36 | 64 | 81 |
| 0.250 | 0.200 | 0.143 | 0.125 |
| 0.3944 | 0.0730 | 0.0031 | 0.0029 |
CPU TIME (Sec) | 0.6708 | 0.7800 | 0.8580 | 0.9572 |