弧线

GeoGebra 命令及参数

1. Segment(D, B) → e
2. Midpoint(C, D) → K
3. Rotate(C, Max[(-ε), (((-(u - 2)) * ε) * 180 / 3.14 / (2°))], K) → C'_2
4. Circle(K, C) → f_1
5. Midpoint(C, D) → F
6. Line(F, e) → k
7. Intersect(f_1, k, 1) → L
8. Circle(L, C'_2) → g_1
9. Center(g_1) → O
10. Intersect(f_1, g_1, 1) → M
11. Mirror(M, k) → M'_1
12. Circle(F, i) → p
13. Intersect(p, k, 2) → G
14. Midpoint(C, D) → E
15. Segment(A, C) → d
16. Segment(E, C) → f
17. Rotate(C, Max[((-(c - 3)) * 180 / (5°)), 180°], E) → C'
18. Rotate(C, 359.91000000000014°, E) → C''
19. CircumcircleArc(C, C'', C') → g
20. Segment(C', E) → h
21. Segment(G, C) → l
22. If(zz < 0, 10, zz) → n
23. Segment(C, F) → r
24. Circle(C, m) → s
25. Intersect(s, r, 1) → H
26. Circle(H, D) → t
27. Intersect(t, k) → I, J
28. Angle(D, H, I) → β
29. Segment(H, D) → a_1
30. Rotate(D, Min[β, (((n - 3) * β) * 180 / 3.14 / (5°))], H) → D'
31. Segment(H, D') → b_1
32. CircleArc(H, D, D') → c_1
33. Mirror(H, k) → H'
34. Mirror(D', k) → D''
35. Segment(H', D'') → d_1
36. Mirror(H, k) → H'_1
37. Mirror(D, k) → D'_1
38. Mirror(D', k) → D''_1
39. Arc(Mirror[Circle[H, D], k], D'_1, D''_1) → e_1
40. Intersect(f_1, g_1, 2) → N
41. Intersect(g_1, k, 2) → P
42. Segment(K, C) → h_1
43. Segment(K, C'_2) → i_1
44. CircleArc(K, C'_2, C) → k_1
45. Mirror(C'_2, k) → Q
46. Segment(K, Q) → l_1
47. CircleArc(K, D, Q) → q_1
48. CircumcircleArc(Q, O, M) → t_1
49. Rotate(C, (-ε), K) → C'_3
50. Circle(L, C'_3) → p_1
51. Mirror(L, k) → L'
52. Mirror(L, k) → L'_1
53. Mirror(M, k) → M'
54. Circle(K, C) → c_2
55. Segment(T1, T) → n_1
56. Mirror(D, n_1) → D'_2
57. Mirror(B, n_1) → B'
58. Segment(D'_2, B') → e'
59. Mirror(A, n_1) → A'
60. Mirror(C, n_1) → C'_4
61. Segment(A', C'_4) → d'
62. Vector(A, B') → z
63. Translate(pic1, z) → pic1'
64. Translate(pic1, z) → pic1'_1