h

$\epsilon =0.2$

${\Vert {\widehat{e}}_u\Vert }_{H^1}$

收敛阶

$\epsilon =0.3$

${\Vert {\widehat{e}}_u\Vert }_{H^1}$

收敛阶

$\frac{1}{8}$

0.014897

0.009461

$\frac{1}{16}$

0.004233

1.8151

0.002505

1.9173

$\frac{1}{32}$

0.001085

1.96332

0.000632

1.9858