探索 GeoGebra 课堂（第一部分）

GeoGebra 命令及参数

1. Point(yAxis) → A
2. Point(yAxis) → B
3. Line(A, B) → f
4. Polygon(C, D, 3) → Vieleck1, g, h, i, E
5. Polygon(F, G, 4) → Vieleck2, j, k, l, m, H, I
6. Polygon(J, K, 3) → Vieleck3, n, p, q, L
7. Point(Circle[P_1, 1.4669696656713795]) → Q_1
8. Polygon(P_1, Q_1, R_1) → poly1, r_1, p_2, q_2
9. Point(Circle[S_1, 1.7274258305351349]) → T_1
10. Polygon(S_1, T_1, U_1) → poly2, u_1, s_1, t_1
11. Point(Circle[V_1, 1.3423859355639867]) → W_1
12. Polygon(V_1, W_1, Z_1) → poly3, z_1, v_1, w_1
13. Point(Circle[A_2, 2.1160340261914503]) → B_2
14. Polygon(A_2, B_2, C_2) → poly4, c_2, a_2, b_2
15. Centroid(poly1) → D_2
16. Centroid(poly2) → E_2
17. Centroid(poly3) → F_2
18. Centroid(poly4) → G_2
19. Centroid(Vieleck3) → H_2
20. Polygon(U_2, V_2, W_2, Z_2) → Vieleck4, u_2, v_2, w_2, z_2
21. PointIn(Vieleck4) → A_3
22. Circle(A_3, 0.5) → c_1
23. PointIn(Vieleck4) → B_3
24. Circle(B_3, 0.8) → c
25. PointIn(Vieleck4) → C_3
26. Circle(C_3, 1) → d_1
27. PointIn(Vieleck4) → D_3
28. Point(Circle[D_3, 1.25]) → E_3
29. Segment(D_3, E_3) → r
30. Rotate(E_3, 90°, D_3) → F_3
31. Rotate(E_3, 180°, D_3) → G_3
32. Rotate(E_3, 270°, D_3) → H_3
33. Polygon(H_3, E_3, F_3, G_3) → Vieleck5, h_3, e_3, f_3, g_3
34. PointIn(Vieleck4) → I_3
35. Point(Circle[I_3, 0.8]) → J_3
36. Segment(I_3, J_3) → s
37. Rotate(J_3, 90°, I_3) → K_3
38. Rotate(J_3, 180°, I_3) → L_3
39. Rotate(J_3, 270°, I_3) → M_3
40. Polygon(J_3, K_3, L_3, M_3) → Vieleck6, j_3, k_3, l_3, m_3
41. PointIn(Vieleck4) → E_1
42. Point(Circle[E_1, 1.2]) → F_1
43. Segment(E_1, F_1) → t
44. Rotate(F_1, 60°, E_1) → N_3
45. Rotate(F_1, 180°, E_1) → O_3
46. Rotate(F_1, 240°, E_1) → P_3
47. Polygon(F_1, N_3, O_3, P_3) → Vieleck7, f_1, n_3, o_3, p_3
48. PointIn(Vieleck4) → Q_3
49. Point(Circle[Q_3, 1.5]) → R_3
50. Segment(Q_3, R_3) → b
51. Rotate(R_3, 30°, Q_3) → S_3
52. Rotate(R_3, 180°, Q_3) → T_3
53. Rotate(R_3, 210°, Q_3) → U_3
54. Polygon(R_3, S_3, T_3, U_3) → Vieleck8, r_3, s_3, t_3, u_3