Method

Number of Steps

max y i y ( x i )

max z i z ( x i )

Wu-Xia [5]

500

2.56 × 10 07

8.02 × 10 08

Four-Step

500

5.68 × 10 09

5.38 × 10 09

Five-Step

500

4.22 × 10 13

9.89 × 10 13