斯涅尔定律的向量构造

GeoGebra 命令及参数

1. Circle(O, 1) → c
2. Point(c) → n
3. Vector(O, n) → N
4. Vector(O, prp * N) → W
5. Vector(-prp * N) → E
6. Point(c) → l
7. Vector(O, l) → L
8. Line(l, L) → b
9. Point(b) → S
10. Segment(S, l) → d
11. Angle(L, Vector[λ * N]) → θ_1
12. Ray(O, T) → f
13. Point(t, Vector[1.5 * T]) → C
14. Segment(t, C) → g
15. Angle(Vector[-λ * N], T) → θ_2
16. Point(O, R) → r
17. Ray(O, R) → h
18. Point(r, Vector[1.5 * R]) → A
19. Segment(r, A) → i