单点法悬链线

GeoGebra 命令及参数

1. Vector(A_1, B_1) → F_1
2. Vector(C, D) → F_2
3. Line(A_1, B_1) → f
4. Line(C, D) → g
5. Line(E, F) → h
6. Translate(G, F_1) → G'
7. Vector(G, G') → F1
8. Translate(G', F_2) → G''
9. Vector(G', G'') → F2
10. Segment(G, O) → CA
11. Segment(G', O) → N12
12. Segment(G'', O) → CB
13. Line(A, CA) → i
14. Intersect(f, i) → H
15. Line(H, N12) → j
16. Intersect(g, j) → I
17. Line(I, CB) → k
18. Intersect(h, k) → B
19. Vector(G, O) → u
20. Vector(O, G) → v
21. Vector(G', O) → w
22. Vector(O, G') → a
23. Vector(O, G'') → b
24. Vector(G'', O) → c
25. Translate(A, v) → A'
26. Vector(A, A') → d
27. Segment(A, H) → l
28. Segment(H, I) → m
29. Segment(I, B) → n
30. Translate(A, u) → A'_1
31. Vector(A, A'_1) → C_A
32. Translate(H, d) → H'
33. Vector(H, H') → p
34. Translate(H, w) → H'_1
35. Vector(H, H'_1) → N_{12}
36. Translate(I, a) → I'
37. Vector(I, I') → r
38. Translate(I, c) → I'_1
39. Vector(I, I'_1) → C_B
40. Translate(B, C_B) → B'
41. Vector(B, B') → t
42. Translate(B, b) → B'_1
43. Vector(B, B'_1) → u_1