船速问题

GeoGebra 命令及参数

1. Point(yAxis) → A
2. Circle(B, A) → c
3. Segment(B, A) → a
4. Segment(A, C) → r
5. Point(xAxis) → E
6. Point(xAxis) → F
7. Polygon(E, F, G, H) → poly1, e, f, g, h
8. CircleArc(I, J, K) → k
9. Polygon(I, J, K) → poly2, k_1, i, j
10. Intersect(k, i, 1) → L
11. Segment(M, N) → b
12. Ellipse(T, U, V) → q
13. Ellipse(W, Z, A_1) → s
14. Circle(B_1, C_1) → t
15. Intersect(q, t, 1) → D_1
16. Intersect(q, t, 1) → E_1
17. Circle(D_1, F_1) → c_1
18. Intersect(q, t, 2) → G_1
19. Intersect(s, q, 1) → H_1
20. Point(q) → I_1
21. Circle(G_1, I_1) → d_1
22. Intersect(s, q, 1) → J_1
23. Intersect(s, q, 1) → K_1
24. Point(q) → L_1
25. Circle(I_1, L_1) → e_1
26. Intersect(s, q, 2) → M_1
27. Point(q) → N_1
28. Circle(L_1, N_1) → f_1
29. Intersect(s, q, 2) → O_1
30. Point(q) → P_1
31. Circle(N_1, P_1) → g_1
32. Point(r) → Q_1
33. Segment(A, R_1) → a_1
34. Segment(A, R_1) → b_1
35. Point(b) → O
36. Circle(O, V_1) → p
37. Point(p) → S_1
38. Segment(O, S_1) → l
39. Point(p) → T_1
40. Segment(O, T_1) → m
41. Point(p) → U_1
42. Segment(O, U_1) → n
43. Point(p) → W_1
44. Segment(O, W_1) → h_1
45. Point(p) → Z_1
46. Segment(O, Z_1) → i_1
47. Point(p) → A_2
48. Segment(O, A_2) → j_1