几何作图范例 by Joel Keeny

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Line(C, f) → g
3. Segment(C, B) → h
4. Line(A, h) → i
5. Intersect(g, i) → D
6. Segment(D, A) → j
7. Segment(C, D) → k
8. Polygon(E, F, G, H) → q1, e, f_1, g_1, h_1
9. Segment(A_1, B_1) → f_2
10. Line(C_1, f_2) → g_3
11. Segment(C_1, B_1) → h_2
12. Line(A_1, h_2) → i_1
13. Intersect(g_3, i_1) → D_1
14. Segment(D_1, A_1) → j_1
15. Segment(C_1, D_1) → k_1
16. Polygon(E_1, F_1, G_1, H_1) → q1_1, e_1, f_3, g_2, h_3
17. Segment(A_2, B_2) → f_4
18. Line(C_2, f_4) → g_6
19. Segment(C_2, B_2) → h_4
20. Line(A_2, h_4) → i_2
21. Intersect(g_6, i_2) → D_2
22. Segment(D_2, A_2) → j_2
23. Segment(C_2, D_2) → k_2
24. Polygon(E_2, F_2, G_2, H_2) → q1_2, e_2, f_5, g_4, h_5
25. Segment(A_3, B_3) → f_6
26. Line(C_3, f_6) → g_7
27. Segment(C_3, B_3) → h_6
28. Line(A_3, h_6) → i_3
29. Intersect(g_7, i_3) → D_3
30. Segment(D_3, A_3) → j_3
31. Segment(C_3, D_3) → k_3
32. Polygon(E_3, F_3, G_3, H_3) → q1_3, e_3, f_7, g_5, h_7
33. Polygon(E_4, F_4, G_4, H_4) → q1_4, e_4, f_8, g_8, h_8
34. Segment(A_4, B_4) → f_9
35. Line(C_4, f_9) → g_9
36. Segment(C_4, B_4) → h_9
37. Line(A_4, h_9) → i_4
38. Intersect(g_9, i_4) → D_4
39. Segment(D_4, A_4) → j_4
40. Segment(C_4, D_4) → k_4
41. Distance(h_8, e_4) → a
42. Distance(A_3, f_6) → distanceA3f6
43. Angle(H_3, E_3, F_3) → α
44. Angle(B_4, C_4, D_4) → β
45. Angle(A_4, B_4, D_4) → γ
46. Angle(D_4, A_4, B_4) → δ
47. Angle(F_3, G_3, H_3) → ε
48. Segment(C_1, A_1) → l
49. Segment(B_1, D_1) → m