动态坐标与几何作图示例

GeoGebra 命令及参数

1. DynamicCoordinates((1.16, 0), 2, 2) → y'
2. OrthogonalLine(A, xAxis) → b
3. Point(b) → F
4. Vector(F, A) → u
5. Vector((o, 0)) → a_x
6. Vector((o, 0), (o, c)) → i
7. Vector((o, 0), (o, (3 * c))) → q
8. Vector((0, 0), (o, (2 * c))) → d_h
9. Textfield(o) → InputBox1
10. Point(a_x) → B
11. Segment(B, A) → t
12. Point(d_h) → C
13. Segment(C, A) → o_1
14. Segment(B, F) → m
15. Vector((o, 0), (o, (2 * c))) → p
16. Segment(E, A) → sec_κ
17. Point(h) → G
18. Point(i) → K
19. Point(h) → M
20. Point(p) → O
21. Point(p) → N
22. Polygon(M, N, O) → poly1, o_2, m_1, n_1
23. Intersect(o_2, m_1) → Q
24. Point(p) → R
25. Segment(Q, R) → j
26. Angle(o_2, j) → α