长跑概率：几何与概率的结合

GeoGebra 命令及参数

1. Element(recordk, 1) → u_1
2. If(u_1 ≟ n_1 ∨ u_1 ≟ n_2, 1, 0) → w_1
3. Element(recordk, 2) → u_2
4. If(u_2 ≟ n_1 ∨ u_2 ≟ n_2, 1, 0) → w_2
5. Element(recordk, 20) → u_{20}
6. Element(recordk, 18) → u_{18}
7. Element(recordk, 16) → u_{16}
8. Element(recordk, 14) → u_{14}
9. Element(recordk, 12) → u_{12}
10. Element(recordk, 10) → u_{10}
11. Element(recordk, 8) → u_8
12. Element(recordk, 6) → u_6
13. Element(recordk, 5) → u_5
14. Element(recordk, 4) → u_4
15. Element(recordk, 3) → u_3
16. Element(recordk, 7) → u_7
17. Element(recordk, 9) → u_9
18. Element(recordk, 11) → u_{11}
19. Element(recordk, 13) → u_{13}
20. Element(recordk, 15) → u_{15}
21. Element(recordk, 17) → u_{17}
22. Element(recordk, 19) → u_{19}
23. If(u_{20} ≟ n_1 ∨ u_{20} ≟ n_2, 1, 0) → w_{20}
24. If(u_{18} ≟ n_1 ∨ u_{18} ≟ n_2, 1, 0) → w_{18}
25. If(u_{16} ≟ n_1 ∨ u_{16} ≟ n_2, 1, 0) → w_{16}
26. If(u_{14} ≟ n_1 ∨ u_{14} ≟ n_2, 1, 0) → w_{14}
27. If(u_{12} ≟ n_1 ∨ u_{12} ≟ n_2, 1, 0) → w_{12}
28. If(u_{10} ≟ n_1 ∨ u_{10} ≟ n_2, 1, 0) → w_{10}
29. If(u_8 ≟ n_1 ∨ u_8 ≟ n_2, 1, 0) → w_8
30. If(u_6 ≟ n_1 ∨ u_6 ≟ n_2, 1, 0) → w_6
31. If(u_5 ≟ n_1 ∨ u_5 ≟ n_2, 1, 0) → w_5
32. If(u_4 ≟ n_1 ∨ u_4 ≟ n_2, 1, 0) → w_4
33. If(u_3 ≟ n_1 ∨ u_3 ≟ n_2, 1, 0) → w_3
34. If(u_7 ≟ n_1 ∨ u_7 ≟ n_2, 1, 0) → w_7
35. If(u_9 ≟ n_1 ∨ u_9 ≟ n_2, 1, 0) → w_9
36. If(u_{11} ≟ n_1 ∨ u_{11} ≟ n_2, 1, 0) → w_{11}
37. If(u_{13} ≟ n_1 ∨ u_{13} ≟ n_2, 1, 0) → w_{13}
38. If(u_{15} ≟ n_1 ∨ u_{15} ≟ n_2, 1, 0) → w_{15}
39. If(u_{17} ≟ n_1 ∨ u_{17} ≟ n_2, 1, 0) → w_{17}
40. If(u_{19} ≟ n_1 ∨ u_{19} ≟ n_2, 1, 0) → w_{19}
41. Length(recordk) → s
42. Intersect(xAxis, yAxis) → A
43. Point(xAxis) → B
44. Point(xAxis) → C
45. Point(xAxis) → D
46. Point(xAxis) → E
47. Point(yAxis) → F
48. Segment(F, A) → f
49. Segment(B, G) → g
50. Segment(H, C) → h
51. Segment(I, D) → i
52. Segment(E, J) → j
53. Segment(A, E) → k
54. Segment(F, J) → l
55. Sequence(Segment[A + (0, i), E + (0, i)], i, 0, 10) → list1
56. Sequence(Segment[K + (0, i), O + (0, i)], i, 0, 10) → list2
57. Segment(P, K) → m
58. Segment(L, G_1) → n
59. Segment(M, H_1) → p
60. Segment(I_1, N) → q
61. Segment(O, J_1) → r
62. Segment(J_1, P) → b
63. Textfield(n_1) → InputBox11
64. Textfield(n_2) → InputBox12
65. Polygon(Q_1, Q_2, R, Q) → poly1, q_1, q_2, s_2, q_3
66. Polygon(S, T, U, V) → poly2, s_1, t_1, u, v