单位圆交互演示

GeoGebra 命令及参数

1. Point(Circle[A, 1]) → C
2. Segment(A, C) → h
3. Ray(A, D) → a
4. OrthogonalLine(A, a) → b
5. Line(C, a) → c
6. Line(C, b) → d
7. Circle(A, C) → e
8. Intersect(c, b) → E
9. Intersect(b, h) → F
10. Segment(F, E) → f
11. Segment(C, E) → g
12. Angle(E, F, C) → α
13. Line(F, C) → i
14. Point(i) → G
15. Line(G, a) → j
16. Intersect(j, b) → X
17. Segment(C, E) → k
18. Segment(E, F) → l
19. Segment(F, G) → H
20. Segment(F, X) → n
21. Segment(G, X) → p
22. Intersect(d, a) → I
23. Segment(C, I) → q
24. Polygon(F, G, X) → poly1, J, f_1, g_1
25. Point(poly1) → K
26. Point(poly1) → L