黄金矩形与根矩形演示

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Point(xAxis) → B
3. Point(xAxis) → D
4. Point(yAxis) → E
5. Segment(O, P) → n
6. Intersect(xAxis, yAxis) → G
7. Polygon(G, C, 4) → poly1, f, g, h, i, H, I
8. Segment(G, H) → j
9. Circle(G, H) → c
10. Intersect(c, xAxis, 2) → J
11. Line(G, C) → k
12. Line(I, H) → l
13. Line(J, g) → m
14. Intersect(l, m) → A_1
15. Circle(G, A_1) → d
16. Intersect(d, k, 2) → B_1
17. Line(B_1, m) → p
18. Intersect(l, p) → C_1
19. Circle(G, C_1) → e
20. Intersect(e, k, 2) → D_1
21. Line(D_1, p) → q
22. Intersect(l, q) → E_1
23. Circle(G, E_1) → r
24. Intersect(r, k, 2) → F_1
25. Line(F_1, q) → s
26. Intersect(l, s) → G_1
27. Circle(G, G_1) → t
28. Intersect(t, k, 2) → H_1
29. Line(H_1, s) → a
30. Intersect(l, a) → I_1
31. Circle(G, I_1) → c_1
32. Intersect(c_1, k, 2) → J_1
33. Line(J_1, a) → b
34. Intersect(l, b) → K_1
35. Circle(G, K_1) → d_1
36. Intersect(d_1, k, 2) → L_1
37. Line(L_1, b) → f_1
38. Intersect(l, f_1) → M_1
39. Circle(G, M_1) → e_1
40. Intersect(e_1, k, 2) → N_1
41. Line(N_1, f_1) → g_1
42. Intersect(l, g_1) → O_1