球面探索3

GeoGebra 命令及参数

1. Intersect(yAxis, zAxis) → A
2. Point(yAxis) → B
3. Sphere(A, B) → a
4. PointIn(a) → C
5. PointIn(a) → D
6. Plane(D, C, A) → b
7. IntersectPath(b, a) → c
8. PointIn(a) → E
9. Plane(D, E, A) → d
10. IntersectPath(d, a) → e
11. Plane(C, E, A) → f
12. IntersectPath(f, a) → g
13. IntersectPath(xOyPlane, f) → h
14. IntersectPath(xOyPlane, f) → i
15. CircleArc(A, D, C) → k
16. CircleArc(A, D, E) → p
17. CircleArc(A, C, E) → q
18. Length(k) → j
19. PointIn(k) → Pointk
20. Length(p) → l
21. Circumference(c) → circumferencec
22. PointIn(c) → Pointc
23. Circumference(e) → circumferencee
24. PointIn(e) → Pointe
25. Circumference(g) → circumferenceg
26. PointIn(g) → Pointg_1
27. Circumference(g) → m
28. PointIn(g) → Pointg_2
29. Circumference(g) → n
30. PointIn(g) → Pointg
31. Tangent(C, k) → r,
32. Tangent(C, q) → s,
33. Point(r) → F
34. Point(s) → G
35. Angle(F, C, G) → α
36. Angle(r, s) → β
37. Tangent(E, p) → t,
38. Tangent(E, q) → f_1,
39. Point(t) → H
40. Point(f_1) → I
41. Angle(H, E, I) → γ