单位圆与向量 by Gary Rubinstein

GeoGebra 命令及参数

1. Point({1, 0}) → A
2. Point({0, 0}) → B
3. Circle(B, A) → c
4. Point(yAxis) → C
5. OrthogonalLine(C, yAxis) → f
6. Intersect(c, f) → D_1, E
7. Point({0, 0}) → F
8. Intersect(c, f, 1) → G
9. Point({1, 0}) → H
10. Angle(H, F, D_1) → α
11. Angle(H, F, E) → β
12. Segment(F, D_1) → g
13. Segment(F, E) → h
14. LaTeX(α, true, true) → text2
15. LaTeX(β, true, true) → text3
16. Point(xAxis) → D
17. OrthogonalLine(D, f) → i
18. Intersect(c, i) → J, K
19. Angle(H, F, J) → γ
20. Angle(H, F, K) → δ
21. Segment(F, J) → j
22. Segment(F, K) → k
23. LaTeX(γ, true, true) → text5
24. LaTeX(δ, true, true) → text6
25. Sequence(Point[{cos(((10 * n) * π / 180)), sin(((10 * n) * π / 180))}], n, 0, 36) → L