大于90度的单位圆

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(xAxis) → B
3. Circle(A, B) → c
4. Point(c) → C
5. Segment(A, C) → hyp
6. OrthogonalLine(C, xAxis) → b
7. Line(A, xAxis) → d
8. Angle(B, A, C) → Θ
9. Intersect(b, d) → D
10. Angle(C, D, A) → α
11. Vector(A, D) → adj
12. Vector(D, C) → opp
13. Line(C, d) → a
14. Intersect(c, a) → E, F
15. Segment(A, F) → e
16. OrthogonalLine(F, d) → f
17. Intersect(f, d) → G
18. Vector(G, F) → u
19. Vector(A, G) → v
20. Angle(A, G, F) → β
21. Angle(F, A, G) → γ
22. Intersect(c, f) → H, I
23. Line(I, d) → h
24. OrthogonalLine(I, d) → i
25. Segment(A, I) → j
26. Intersect(i, d) → J
27. Vector(A, J) → w
28. Vector(J, I) → k
29. Angle(J, A, I) → δ
30. Angle(I, J, A) → ε
31. Intersect(c, b) → K, L
32. Segment(A, L) → m
33. Vector(A, D) → p
34. Vector(D, L) → q
35. Angle(L, A, D) → ζ
36. Angle(A, D, L) → η