旋转对称性演示 by juliacyng

GeoGebra 命令及参数

1. Circle(O, A) → c
2. Point(c) → B
3. Angle(A, O, B) → α
4. Rotate(pic1, α, O) → pic1'
5. Circle(D, C) → d
6. Point(d) → E
7. Angle(C, D, E) → β
8. Rotate(pic2, β, D) → pic2'
9. Circle(G, F) → e
10. Point(e) → H
11. Angle(F, G, H) → γ
12. Rotate(pic15, γ, G) → pic15'
13. Circle(I, J) → f
14. Point(f) → K
15. Angle(J, I, K) → δ
16. Rotate(pic9, δ, I) → pic9'
17. Circle(L, M) → g
18. Point(g) → N
19. Angle(M, L, N) → ε
20. Rotate(pic18, ε, L) → pic18'
21. Circle(P, Q) → h
22. Point(h) → R
23. Angle(Q, P, R) → ζ
24. Rotate(pic5, ζ, P) → pic5'
25. Circle(S, T) → k
26. Point(k) → U
27. Angle(T, S, U) → η
28. Rotate(pic6, η, S) → pic6'
29. Circle(V, W) → p
30. Point(p) → Z
31. Angle(W, V, Z) → θ
32. Rotate(pic11, θ, V) → pic11'
33. Circle(A_1, B_1) → q
34. Point(q) → C_1
35. Angle(B_1, A_1, C_1) → ι
36. Rotate(pic13, ι, A_1) → pic13'
37. Circle(D_1, E_1) → r
38. Point(r) → F_1
39. Angle(E_1, D_1, F_1) → κ
40. Rotate(pic10, κ, D_1) → pic10'
41. Circle(G_1, H_1) → s
42. Point(s) → I_1
43. Angle(H_1, G_1, I_1) → λ
44. Rotate(pic7, λ, G_1) → pic7'
45. Circle(J_1, K_1) → t
46. Point(t) → L_1
47. Angle(K_1, J_1, L_1) → μ
48. Rotate(pic17, μ, J_1) → pic17'
49. Circle(M_1, N_1) → c_1
50. Point(c_1) → O_1
51. Angle(N_1, M_1, O_1) → ν
52. Rotate(pic8, ν, M_1) → pic8'
53. Circle(P_1, Q_1) → d_1
54. Point(d_1) → R_1
55. Angle(Q_1, P_1, R_1) → ξ
56. Rotate(pic16, ξ, P_1) → pic16'
57. Circle(S_1, T_1) → e_1
58. Point(e_1) → U_1
59. Angle(T_1, S_1, U_1) → ο
60. Rotate(pic14, Angle[T_1, S_1, U_1], S_1) → pic14'
61. Circle(V_1, W_1) → f_1
62. Point(f_1) → Z_1
63. Rotate(pic4, Angle[W_1, V_1, Z_1], V_1) → pic4'
64. Circle(A_2, B_2) → g_1
65. Point(g_1) → C_2
66. Rotate(pic3, Angle[B_2, A_2, C_2], A_2) → pic3'
67. Circle(D_2, E_2) → h_1
68. Point(h_1) → F_2
69. Rotate(pic12, Angle[E_2, D_2, F_2], D_2) → pic12'