黄金螺旋构造

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(xAxis) → B
3. Polygon(A, B, 4) → poly1, a, b, c, d, C, D
4. Polygon(C, B, 4) → poly2, e, f, g, h, E, F
5. Polygon(D, F, 4) → poly3, i, j, k, l, G, H
6. Polygon(A, H, 4) → poly4, m, n, p, q, I, J
7. Polygon(E, J, 4) → poly5, r, s, t, a_1, K, L
8. Polygon(G, L, 4) → poly6, b_1, c_1, d_1, e_1, M, N
9. Polygon(I, N, 4) → poly7, f_1, g_1, o, i_1, O, P
10. Polygon(K, P, 4) → poly8, h_1, j_1, k_1, l_1, Q, R
11. CircleArc(C, D, B) → p_1
12. CircleArc(C, B, F) → q_1
13. CircleArc(D, F, H) → r_1
14. CircleArc(A, H, J) → s_1
15. CircleArc(E, J, L) → t_1
16. CircleArc(G, L, N) → c_2
17. CircleArc(I, N, P) → d_2
18. CircleArc(K, P, R) → e_2