直线反射 by Nadezhda Konstantinova

GeoGebra 命令及参数

1. Point(yAxis) → T
2. Line(K_1, T) → g_1
3. Point(g_1) → U
4. Segment(K, U) → q_1
5. Point(q_1, (-w)) → A_1
6. Vector(C, E) → u
7. Vector(D, F) → v
8. Segment(H, C) → c
9. Ellipse((3.5, 1), (-3.5, 1), 4) → d
10. Ellipse((0.75, 1), (-0.75, 1), 1) → e
11. Point(d, a) → I
12. Point(e, a) → J
13. Ellipse((0.75, 4.64), (-0.75, 4.64), 1) → f
14. Point(f, a) → M
15. Ellipse((1, 0.95), (1, -0.95), 1) → h
16. Ellipse((4, 0.95), (4, -0.95), 1) → k
17. Point(h, i) → N
18. Point(k, i) → O
19. Ellipse((1, 4.5), (1, -4.5), 4.64) → p
20. Point(p, i) → P
21. Segment(C, N) → j
22. Ellipse((0.95, 0.95), (-0.95, -0.95), C) → q
23. Ellipse((3.9, 0.9), (-0.9, -3.9), D) → r
24. Point(q, n) → Q
25. Point(r, n) → R
26. Ellipse((0.9, 4.6), (-4.6, -0.9), K) → s
27. Point(s, n) → S
28. Line(K, S) → t
29. Line(C, Q) → a_1
30. Line(D, R) → b_1
31. Angle(b_1, m) → β
32. Segment(T, C_1) → e_1
33. Line(T, C_1) → f_1
34. Point(f_1) → V
35. Line(D_1, T) → h_1
36. Segment(K_1, T) → i_1
37. Segment(T, U) → j_1
38. Segment(T, D_1) → l_1
39. Point(h_1) → W
40. Segment(T, W) → m_1
41. Segment(V, T) → n_1
42. Segment(W, D) → r_1
43. Segment(V, C) → p_1
44. Point(r_1, w) → Z
45. Point(p_1, w) → B_1
46. Intersect(xAxis, yAxis) → F_1
47. Segment((0, 0), A_1) → k_1
48. Rotate(A_1, α, (0, 0)) → E_1
49. Segment(E_1, F_1) → s_1
50. Textfield(α) → InputBox1
51. Rotate(pic1, α, (0, 0)) → pic1'