斯坦米尔双曲线

GeoGebra 命令及参数

1. Line(A, B) → a
2. Line(B, C) → b
3. Line(C, A) → c
4. Circle(A, B, C) → d
5. Tangent(B, d) → e,
6. Tangent(A, d) → f,
7. Tangent(C, d) → g,
8. Intersect(e, f) → C'
9. Intersect(f, g) → B'
10. Intersect(e, g) → A'
11. Polygon(A, B, C) → poly1, c_1, a_1, b_1
12. Polygon(C', B', A') → poly2, f_1, d_1, e_1
13. Center(d) → O
14. AngularBisector(c, a) → h, i
15. AngularBisector(b, c) → j, k
16. AngularBisector(a, b) → l, m
17. Intersect(i, k) → I
18. Intersect(h, j) → E_1
19. Intersect(i, j) → E_2
20. Intersect(h, k) → E_3
21. OrthogonalLine(E_1, b) → n
22. OrthogonalLine(E_2, c) → p
23. OrthogonalLine(E_3, c) → q
24. Intersect(c, q) → D
25. Circle(E_3, D) → r
26. Intersect(p, c) → E
27. Circle(E_2, E) → s
28. Intersect(n, b) → F
29. Circle(E_1, F) → t
30. Conic(E_3, I, O, E_1, E_2) → g_1
31. OrthogonalLine(A, b) → h_1
32. OrthogonalLine(C, a) → i_1
33. Intersect(h_1, i_1) → H
34. Line(H, O) → j_1
35. Mirror(j_1, b) → k_1
36. Mirror(j_1, c) → l_1
37. Intersect(l_1, k_1) → S_c
38. Intersect(d, j_1) → G, J
39. Line(S_c, J) → m_1
40. Line(G, S_c) → n_1