二维向量与斜率动态演示

GeoGebra 命令及参数

1. Circle(A, B) → c
2. PointIn(a) → C
3. Distance(A, C) → b
4. Distance(C, c) → d
5. Circle(C, e) → f
6. Intersect(c, f, 1) → D
7. Line(A, D) → g
8. Line(C, D) → h
9. Intersect(f, g, 2) → E
10. Intersect(c, h, 2) → F
11. Intersect(c, f, 2) → G
12. Circle(A, E, F) → k
13. Distance(A, B) → i
14. LineBisector(C, A) → j
15. LineBisector(F, E) → l
16. Intersect(j, l) → H
17. Dilate(A, If[0 < m ≤ 1, 1 - m, 0], E) → A'
18. Segment(A, A') → n
19. Dilate(E, If[1 < m ≤ 2, 2 - m, 0], D) → E'
20. Segment(E, E') → p
21. Dilate(C, If[2 < m ≤ 3, 3 - m, 0], F) → C'
22. Segment(C, C') → q
23. Dilate(F, If[3 < m ≤ 4, 4 - m, 0], D) → F'
24. Segment(F, F') → r
25. Dilate(H, If[5 < m ≤ 6, 6 - m, 0], A) → H'
26. Vector(H, H') → u
27. Circle(H, H') → s