h

${\Vert w-w_h\Vert }_{\infty }$

order

${\Vert w-w_h\Vert }_{\mathrm{0,}h}$

order

${\Vert w-w_h\Vert }_{\mathrm{1,}h}$

order

$\frac{1}{2^4}$

1.444e−02

-

1.021e−02

-

1.533e−01

-

$\frac{1}{2^5}$

3.611e−03

1.999

2.553e−03

1.999

7.917e−02

0.9541

$\frac{1}{2^6}$

9.028e−04

1.999

6.384e−04

1.999

4.022e−02

0.9770

$\frac{1}{2^7}$

2.257e−04

2.000

1.596e−04

2.000

2.027e−02

0.9886

$\frac{1}{2^8}$

5.643e−05

2.000

3.990e−05

2.000

1.017e−02

0.9943