h

收敛速度

4/10

1/20

0.0413

0.0945

4/20

1/40

0.0120

0.0393

1.783

4/40

1/80

0.0031

0.0140

1.957

4/80

1/160

7.712e−4

0.0049

2.007

4/160

1/320

1.931e−4

0.0017

1.998

4/320

1/640

4.830e−5

6.116e−4

1.999

4/640

1/1280

1.207e−5

2.161e−4

2.001

4/1280

4/2560

3.019e−6

7.638e−5

1.999