正弦与余弦函数图像绘制 by Gerald Tarayao

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Intersect(c, xAxis, 2) → B
3. Point(c) → C
4. Angle(B, A, C) → α
5. OrthogonalLine(C, xAxis) → f
6. Segment(A, C) → g
7. Intersect(f, xAxis) → D
8. Segment(C, D) → h
9. OrthogonalLine(C, yAxis) → i
10. Intersect(i, yAxis) → E
11. Segment(C, E) → j
12. Segment(A, D) → k
13. Segment(E, A) → l
14. CircleArc(A, B, C) → e
15. OrthogonalLine(F, xAxis) → m
16. Intersect(m, xAxis) → G
17. Segment(F, G) → n
18. OrthogonalLine(F, xAxis) → p
19. Segment(F, H) → r