足球任意球轨迹的曲线分析与参数建模

GeoGebra 命令及参数

1. Polygon(A, B, D, C) → poly1, a_1, b, d, c
2. Polygon(A - (e, (2.5 * e)), B + (e, (-2.5 * e)), D + (e, e), C + ((-e), e)) → poly2, f, g, h, i
3. Polynomial(Liste1) → p
4. PolyLine(E, F, G, H, I, J) → j
5. Midpoint(A, K) → L
6. Polygon(M, N, O, P) → poly3, m, n, o, p_1
7. Point(m) → Q
8. Point(m) → R
9. Polygon(Q, R, S, T) → poly4, q, r, s, t_1
10. Line(W, Z) → k
11. CircumcircleArc(W, V, Z) → c_1
12. Polygon(A_1, B_1, C_1, D_1) → poly5, a_2, b_1, c_2, d_1
13. Intersect(d_1, k) → E_1
14. Intersect(b_1, k) → F_1
15. Segment(E_1, F_1) → l
16. Line(M, N) → e_1
17. Intersect(d_1, e_1) → G_1
18. Intersect(b_1, e_1) → H_1
19. Segment(G_1, H_1) → f_1
20. PolyLine(Liste2) → g_1
21. Take(Liste2, 1, u) → liste1
22. Polygon(Q, R, S, T) → poly6, q_1, r_1, s_1, t_2