l

3˚

6˚

10˚

15˚

18˚

20˚

24˚

弧长

333,958

667,917

1,113,195

1,669,792

2,003,750

2,226,389

2,671,667

坐标值

334,112

669,149

1,117,011

1,686,364

2,034,127

2,269,215

2,748,787

绝对误差

158

1232

3816

16,572

30,377

42,826

77,120