N

$FGM{C}_{1-0-2}$

收敛阶

$FGM{C}_{2-0-3}$

收敛阶

$FGM{C}_{3-0-3}$

收敛阶

N = 8

9.99e−04

9.78e−04

2.84e−04

N = 16

6.84e−05

3.87

1.02e−06

9.90

2.84e−06

6.64

N = 24

1.21e−05

4.28

1.87e−06

4.19

1.20e−07

7.81

N = 32

3.19e−06

4.62

3.19e−08

6.14

1.21e−08

7.97

N = 40

1.11e−06

4.74

7.50e−09

6.49

2.02e−09

8.02

N = 48

4.61e−07

4.81

2.24e−09

6.64

4.64e−10

8.08

N = 56

2.19e−07

4.84

7.97e−10

6.70

1.31e−10

8.20

N = 64

1.14e−07

4.87

3.22e−10

6.79

4.62e−11

7.82

N = 72

6.42e−08

4.89

1.43e−10

6.90

1.94e−11

7.38

收敛阶

5.00

7.00

8.00