Table 2 Errors, convergence orders and CPU time for Example 2
Mesh | \(\boldsymbol {\|u-u_{h}\|_{L^{2}(\Omega)}}\) | Order | \(\boldsymbol {|\!|\!|\{y-y_{h},\sigma-\sigma _{h}\}|\!|\!|_{\delta}}\) | Order | CPU time |
|---|---|---|---|---|---|
8*8 | 7.1264E-02 | - | 9.5403E-02 | - | 8s |
16*16 | 3.5255E-02 | 1.02 | 4.6587E-02 | 1.03 | 37s |
32*32 | 1.7583E-02 | 1.00 | 2.3046E-02 | 1.02 | 172s |
64*64 | 8.7859E-03 | 1.00 | 1.1465E-02 | 1.01 | 973s |