基本三角比

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(xAxis) → B
3. Point(yAxis) → C
4. CircleSector(A, B, C) → c
5. Segment(A, B) → b
6. Rotate(B, α, A) → B'
7. Angle(B, A, B') → β
8. Line(B', yAxis) → a
9. Segment(B', A) → d
10. Intersect(c, a, 1) → D
11. Segment(A, B) → e
12. Intersect(a, b) → E
13. Segment(B', E) → f
14. Segment(A, E) → g
15. Angle(D, E, A) → γ
16. Angle(A, D, E) → δ
17. Circumference(c) → h
18. Distance(f, d) → i
19. Circumference(c) → j
20. Circumference(c) → k
21. Distance(A, E) → distanceAE