Table 1:
The error estimates for conforming FE scheme.
1/2
1/4
1/8
1/16
1/32
1/64
2.1780
−02
6.6596
03
1.8851
03
5.1760
04
1.3861
04
3.5405
05
order
/
1.8084
1.8796
1.9084
1.9324
1.9786
5.3923
03
1.5926
03
4.1215
04
1.0371
04
2.5691
05
6.1214
06
order
/
1.8401
1.9657
1.9935
2.0092
2.0486