椭圆方程结构解析与交互探索

GeoGebra 命令及参数

1. Point(Ray[A + (0, 1), A + (0, 2)]) → H
2. Distance(A, H) → c_1
3. Point(Ray[A + (1, 0), A + (2, 0)]) → E
4. Distance(A, E) → d_1
5. Point(Segment[(h + 1, y(C) + 10), (h + 1, y(C) - 10)]) → D
6. Line(A, B) → f
7. Vector(A, C) → u
8. Polygon(A, C, B) → t1, b, a_1, c
9. Segment(A, C) → h_{1}
10. Vector((h, 0), A) → w
11. Vector((0, 0), (h, 0)) → j
12. Distance(A, E) → n
13. Vector(A, E) → v
14. Point(p) → F
15. Intersect(eq1, q) → G
16. Polygon(A, G, F) → t2, f_1, a_2, g_1
17. Segment(F, A) → r
18. Segment(A, G) → s
19. Segment(G, F) → t
20. Angle(A, G, F) → α
21. RotateText(text18, pi / 2) → text20
22. RotateText(text19, pi / 2) → text21
23. Vector(A, H) → u_1