球体问题：求纬度半径

GeoGebra 命令及参数

1. Point(zAxis) → B
2. CurveCartesian(0, 0, (z(B) * t), t, -1, 1) → e
3. Point(e) → J
4. Sphere(A, B) → a
5. CurveCartesian((z(B) * cos(t)), (z(B) * sin(t)), 0, t, 0, (2 * π)) → b
6. CurveCartesian((r * cos(t)), (r * sin(t)), k, t, 0, (2 * π)) → d
7. Point(d) → D
8. Segment(C, D) → f
9. Segment(A, D) → g
10. Plane(A, B, D) → h
11. Segment(A, E) → j
12. Segment(C, A) → l
13. Angle(E, A, D) → α
14. AngularBisector(E, A, D) → m
15. Point(m) → K
16. PointIn(c) → L
17. If(n > 0, "north") → text6
18. If(n < 0, "south") → text7
19. CornerThreeD(-1, 11) → M
20. Plane(B, I, M) → o
21. OrthogonalLine(N, o) → p
22. CornerThreeD(-1, 1) → O
23. CornerThreeD(-1, 7) → P
24. IntersectPath(c, o) → f_1
25. Min(abs(z(O)), z(P)) → v
26. Segment(I, B) → g_1
27. Circle(J, 3.5, g_1) → c_1
28. Intersect(o, c_1) → Q, R
29. IntersectPath(c, w) → h_1
30. Segment((x(O), y(O), k), (x(O), y(P), k)) → q
31. Segment((x(P), y(O), k), (x(P), y(P), k)) → s
32. Segment((x(O), y(P), k), (x(P), y(P), k)) → t
33. Segment((x(O), y(O), k), (x(P), y(O), k)) → i_1
34. Plane(B, I, U) → u
35. Intersect(h_1, u) → V