反射与折射 by Lenore Horner

GeoGebra 命令及参数

1. Polygon(Corner[1, 1], Corner[1, 2], Right, Left) → poly1, a, b, right, left
2. Polygon(Corner[1, 4], Corner[1, 3], Right, Left) → poly2, c, d, right_1, left_1
3. Angle(D, (0, 0), C) → θ_{inc}
4. Mirror(C, yAxis) → C'
5. Ray((0, 0), C') → reflectedRay
6. Rotate((0, (-y(C))), (((-sgn(x(C))) * sgn(y(C))) * refl), (0, 0)) → E
7. Ray((0, 0), E) → refractedRay
8. Angle((0, (-y(C))), (0, 0), E) → θ_{refr}
9. Angle(D, (0, 0), C') → θ_{refl}
10. Angle(E, (0, 0), C') → α
11. Intersect(xAxis, yAxis) → O
12. Vector(C, O) → incidentRay