Giugiuc 抛物线

GeoGebra 命令及参数

1. Line(A_4, B_4) → a_3
2. Parabola(F, a_3) → c_3
3. Point(c_3) → B_1
4. Point(c_3) → A_1
5. Point(c_3) → C_1
6. Tangent(B_1, c_3) → b_3,
7. Tangent(A_1, c_3) → d,
8. Tangent(C_1, c_3) → e,
9. Intersect(b_3, e) → A
10. Intersect(d, e) → B
11. Intersect(b_3, d) → C
12. Polygon(C, A, B) → poligon1, i, g, h
13. Circle(A, B_1, C_1) → f
14. Circle(B, C_1, A_1) → k
15. Center(f) → A_2
16. Center(k) → B_2
17. Circle(C, A_1, B_1) → p
18. Center(p) → C_2
19. Segment(C, B) → j
20. Point(b_3) → D
21. Segment(A, D) → l
22. Point(e) → E
23. Segment(A, E) → m
24. Point(k) → G
25. Segment(B_2, G) → n
26. Point(p) → H_1
27. Segment(C_2, H_1) → q
28. Point(f) → I
29. Segment(A_2, I) → r
30. Polygon(A_2, C_2, B_2) → poligon2, b_2, a_2, c_2
31. Angle(A_2, B_2, C_2) → α
32. Distance(A_2, C_2) → distanceA2C2
33. Distance(A, C) → distanceAC
34. Distance(F, a_3) → distanceFa
35. Distance(A, B) → distanceAB
36. Distance(A_2, B_2) → distanceA2B2
37. OrthogonalLine(C_1, m) → t
38. OrthogonalLine(B_1, i) → a_1
39. OrthogonalLine(A_1, h) → b_1
40. Intersect(t, b_1) → B_3
41. Intersect(a_1, t) → A_3
42. Intersect(b_1, a_1) → C_3
43. Distance(A_3, C_3) → distanceKL
44. Distance(A_2, C_2) → o
45. Distance(B_3, C_3) → distanceJL
46. Distance(B_2, C_2) → distanceB2C2
47. Distance(B, C) → distanceBC
48. Distance(A, C) → u
49. Distance(C_3, B_3) → distanceLJ
50. Distance(A_3, C_3) → v
51. Line(A, A_2) → c_1
52. Line(C, C_2) → d_1
53. Line(B, B_2) → e_1
54. Polygon(C_3, A_3, B_3) → poly1, j_1, l_1, k_1
55. Angle(h, b_1) → β
56. Angle(l, a_1) → γ
57. Angle(m, t) → δ
58. Distance(C_2, C_3) → distanceC2C3
59. Distance(C_2, C) → distanceC2C
60. Distance(B, B_2) → distanceBB2
61. Distance(B_2, B_3) → distanceB2B3
62. Distance(A, F) → distanceAF
63. Distance(F, A_3) → distanceFA3
64. Segment(C, C_3) → f_1
65. Segment(A_1, B_3) → a
66. Segment(C_1, B_3) → c
67. Segment(B, B_3) → i_1
68. Segment(A, A_3) → m_1
69. Segment(B_1, A_3) → b