圆柱的平面截面

GeoGebra 命令及参数

1. OrthogonalLine(T, xOyPlane) → a
2. InfiniteCylinder(a, r) → b
3. Line(B_1, a) → c
4. Line(C_1, a) → d
5. Point(c) → A
6. Point(d) → B
7. Plane(A, a) → e
8. Line(A, B) → f
9. Intersect(a, f) → M
10. OrthogonalPlane(M, a) → g
11. OrthogonalPlane(M, f) → h
12. IntersectPath(h, g) → i
13. Intersect(i, b) → C, D
14. OrthogonalLine(M, f, e) → k
15. Circle(M, r, e) → p
16. Intersect(k, p) → E, F
17. Line(F, f) → l
18. Line(E, f) → m
19. Intersect(a, l) → M_2
20. Intersect(a, m) → M_1
21. OrthogonalLine(M_2, f, e) → n
22. OrthogonalLine(M_1, f, e) → q
23. Intersect(f, q) → F_1
24. Intersect(f, n) → F_2
25. Plane(f, i) → ε
26. Ellipse(F_1, F_2, C, ε) → s
27. OrthogonalLine(M_2, a, e) → t
28. OrthogonalLine(M_1, a, e) → a_1
29. Intersect(d, t) → G
30. Intersect(d, a_1) → H
31. Circle(a, G) → c_1
32. Circle(a, H) → d_1
33. Sphere(M_2, F_2) → kug2
34. Sphere(M_1, F_1) → kug1
35. Circle(M_2, F_2, e) → k_2
36. Circle(M_1, F_1, e) → k_1
37. Point(s) → P
38. Line(P, c) → b_1
39. Intersect(b_1, c_1) → P_2,
40. Intersect(b_1, d_1) → P_1,
41. Segment(F_1, P) → l_1
42. Segment(P, P_1) → f_1
43. Segment(F_2, P) → l_2
44. Segment(P, P_2) → h_1
45. Angle(n, f, e) → α
46. Angle(f, q, e) → β