Table 4 Numerical results at \(t=1.0\) with \(\tau=5h\)
m × m | \(\|u^{n}-U^{n}_{h}\|_{1,h}\) | Order | \(\|U^{n}_{h}-I_{h}u^{n}\|_{1,h}\) | Order |
|---|---|---|---|---|
20 × 20 | 0.0185 | – | 0.8608 × 10−3 | – |
40 × 40 | 0.0092 | 0.9999 | 0.2154 × 10−3 | 1.9988 |
80 × 80 | 0.0046 | 1.0000 | 0.0539 × 10−3 | 1.9997 |