正四棱锥

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Circle(A, a) → c
3. Intersect(c, xAxis) → B_1, B
4. Circle(A, b) → d
5. Intersect(d, yAxis) → D, E
6. Point(c) → Δ
7. Segment(A, Δ) → e
8. Line(B, e) → f
9. Line(Δ, xAxis) → g
10. Intersect(f, g) → Γ
11. Segment(Δ, B) → h
12. Segment(Γ, A) → i
13. Intersect(h, i) → O
14. Line(O, xAxis) → j
15. Intersect(f, j) → M
16. OrthogonalLine(O, xAxis) → k
17. Line(D, i) → l
18. Intersect(k, l) → K
19. Segment(A, K) → m
20. Segment(K, Γ) → n
21. Segment(K, Δ) → p
22. Segment(K, B) → q
23. Segment(Γ, B) → r
24. Segment(Δ, Γ) → s
25. Segment(A, B) → t
26. Segment(K, M) → a_1
27. Segment(O, M) → b_1
28. Segment(K, O) → c_1
29. Polygon(O, M, K) → poly1, k_1, h_1, i_1
30. Polygon(Δ, Γ, B, A) → poly2, f_1, g_1, c_2, a_2
31. Angle(O, A, K) → ω
32. Angle(K, M, O) → φ
33. Point(m) → C
34. Point(c_1) → G
35. Point(h_1) → I
36. Point(g_1) → P
37. Vector(P, Q) → u
38. Vector(I, L) → v
39. Vector(G, H) → w
40. Vector(C, F) → z
41. Vector(N, R) → u_1