费马-道- Nhi 等边三角形的一般化

GeoGebra 命令及参数

1. Polygon(A, B, 3) → poly1, f, g, h, C
2. Polygon(B, D, 3) → poly2, i, j, k, E
3. Polygon(D, A, 3) → poly3, l, m, n, B_f
4. Centroid(poly1) → I
5. Centroid(poly3) → J
6. Centroid(poly2) → K
7. Polygon(K, I, J) → t2, j_1, k_1, i_1
8. Centroid(t2) → M
9. Mirror(B_f, F) → G
10. Mirror(E, F) → E'
11. Mirror(C, F) → C'
12. Midpoint(E', A) → H
13. Midpoint(G, B) → L
14. Midpoint(C', D) → N
15. Segment(B_f, F) → p
16. Segment(F, G) → q
17. Segment(E, F) → r
18. Segment(F, E') → s
19. Segment(C, F) → t
20. Segment(F, C') → a
21. Segment(G, L) → b
22. Segment(L, B) → c
23. Segment(D, N) → d
24. Segment(N, C') → e
25. Segment(E', H) → f_1
26. Segment(H, A) → g_1
27. Polygon(L, H, N) → t1, n_1, l_1, h_1
28. Segment(L, J) → m_1
29. Segment(H, K) → p_1
30. Segment(N, I) → q_1
31. Intersect(m_1, p_1) → O
32. Segment(F, O) → r_1
33. Segment(O, M) → s_1