SolveMyMaths 行动2：动态几何优化问题演示

GeoGebra 命令及参数

1. Polygon(A, B, 8) → poly1, f, D, E, F, G, H, g, h, i, j, k, l, m, C
2. Line(A, B) → n
3. Line(D, C) → p
4. Intersect(n, p) → I
5. Polygon(D, I, 4) → poly2, q, r, s, t, J, K
6. Segment(A, H) → a
7. Segment(H, G) → b
8. Segment(G, F) → c
9. Segment(F, E) → d
10. Segment(E, D) → e
11. Segment(C, B) → f_1
12. Segment(D, I) → g_1
13. Segment(D, K) → h_1
14. Segment(K, J) → i_1
15. Dilate(C, If[0 < o ≤ 1, 1 - o, 0], J) → C'_1
16. Segment(C, C'_1) → j_1
17. OrthogonalLine(H, n) → k_1
18. Intersect(n, k_1) → L
19. Dilate(H, If[1 < o ≤ 2, 2 - o, 0], L) → H'
20. Segment(H, H') → l_1
21. Line(H', n) → m_1
22. Intersect(m_1, a) → M
23. Polygon(H, H', M) → t1, m_2, h_2, h'
24. Segment(H', M) → n_1
25. Distance(L, A) → u
26. Circle(A, (0.8 * u)) → c_1
27. Intersect(c_1, n) → N, O
28. Rotate(H, 22.5°, A) → H'_1
29. Angle(H, A, H'_1) → α
30. Ray(A, H'_1) → p_1
31. Intersect(p_1, l_1) → P
32. Dilate(A, If[2 < o ≤ 3, 3 - o, 0], P) → A'
33. Segment(A, A') → q_1
34. Rotate(N, If[3 < o ≤ 4, ((-(o - 3)) * π / 8), ((-π)) / 8], A) → N'
35. CircleSector(A, N', N) → d_1
36. Midpoint(F, B) → Q
37. Midpoint(D, J) → R
38. Rotate(d_1, If[4.5 < o ≤ 5.5, ((-(o - 4.5)) * π / 8), ((-π)) / 8], A) → e_1
39. Dilate(A, If[6 < o ≤ 7, 7 - o, 0], Q) → A'_1
40. Vector(A, A'_1) → v
41. Translate(e_1, v) → r_1
42. Dilate(Q, If[7 < o ≤ 8, 8 - o, 0], J) → Q'
43. Vector(Q, Q') → w
44. Translate(r_1, w) → s_1
45. Rotate(s_1, If[7 < o ≤ 8, (((-(o - 7)) * 15) * π / 8), π / 8], Q') → t_1