正弦函数图像与几何构造

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Circle(A, 1.0) → c
3. Point(c) → P
4. OrthogonalLine(P, yAxis) → a
5. Intersect(a, yAxis) → B
6. Segment(P, B) → b
7. OrthogonalLine(P, xAxis) → d
8. Intersect(d, xAxis) → C
9. Segment(P, C) → e
10. Segment(A, P) → f
11. Angle(xAxis, f) → θ
12. Vector(M, N) → u
13. Vector(O, Q) → v
14. Point(u) → D
15. Point(u) → E
16. Point(Circle[D, 4.3]) → F
17. Segment(D, F) → i
18. Point(Circle[E, 4.3]) → G
19. Segment(E, G) → j
20. Point(i) → H
21. Point(j) → I
22. Point(i) → J
23. Point(j) → K
24. Point(i) → L
25. Point(j) → R
26. Point(i) → S
27. Point(j) → T
28. Segment(H, I) → k
29. Segment(J, K) → l
30. Segment(L, R) → m
31. Segment(S, T) → n