阶数

K = k_l = 10¹²

K = k_l = 10¹⁴

K = k_l = 10¹⁶

K = k_l = 10¹⁸

K = k_l = 10²⁰

1

7.58

7.60

7.60

7.60

7.63

2

14.56

14.62

14.62

14.62

14.65

3

14.56

14.62

14.62

14.62

14.67