费尔巴赫定理与费尔巴赫点（二）

GeoGebra 命令及参数

1. Line(A, B) → m
2. Line(C, A) → n
3. Line(B, C) → q
4. OrthogonalLine(A, q) → a
5. OrthogonalLine(B, n) → b
6. OrthogonalLine(C, m) → c
7. LineBisector(B, C) → d
8. LineBisector(C, A) → e
9. LineBisector(A, B) → f
10. Intersect(q, a) → D
11. Intersect(n, e) → E
12. Intersect(n, b) → F_1
13. Intersect(m, c) → G_1
14. Intersect(m, f) → I_1
15. Intersect(q, d) → J
16. Circle(G_1, D, E) → k
17. Segment(A, J) → i
18. Segment(B, E) → j
19. Segment(I_1, C) → l
20. Intersect(i, j) → G
21. AngularBisector(n, m) → g, h
22. AngularBisector(q, m) → p, r
23. AngularBisector(n, q) → s, t
24. Intersect(g, p) → H
25. Intersect(h, r) → I
26. Intersect(h, p) → L
27. Intersect(g, r) → M
28. OrthogonalLine(M, q) → a_1
29. OrthogonalLine(L, q) → b_1
30. OrthogonalLine(H, n) → c_1
31. Intersect(n, c_1) → N_1
32. Circle(H, N_1) → d_1
33. Intersect(q, a_1) → O
34. Circle(M, O) → e_1
35. Intersect(q, b_1) → P
36. Circle(L, P) → f_1
37. OrthogonalLine(I, q) → g_1
38. Intersect(q, g_1) → Q
39. Circle(I, Q) → h_1
40. Intersect(h_1, k) → F, , ,
41. Intersect(k, e_1, 1) → R
42. Intersect(k, f_1, 1) → S
43. Intersect(d_1, k) → T, K, ,
44. Center(k) → N
45. Segment(B, R) → i_1
46. Segment(T, C) → j_1
47. Segment(A, S) → k_1
48. Line(I, N) → l_1
49. Intersect(l_1, i_1) → F'