反射中的反射

GeoGebra 命令及参数

1. Circle(A, B) → c
2. Circle(B, A) → d
3. Line(A, B) → f
4. OrthogonalLine(A, f) → g
5. Intersect(c, g, 2) → R
6. OrthogonalLine(R, g) → h
7. Intersect(d, f, 2) → D
8. LineBisector(B, D) → i
9. Intersect(d, h, 1) → S
10. Intersect(f, i) → T
11. Intersect(f, g) → U
12. Polygon(U, R, S, T) → q1, g_1, c_1, e, f_1
13. Point(g) → C
14. OrthogonalLine(C, g) → j
15. Segment(R, C) → k
16. Rotate(R, (-(90°)), C) → R'
17. Rotate(C, (-(90°)), C) → C'
18. Segment(R', C') → k'
19. LineBisector(R', R) → l
20. Mirror(U, l) → U'
21. Mirror(R, l) → R'_{1}
22. Mirror(S, l) → S'
23. Mirror(T, l) → T'
24. Polygon(U', R'_{1}, S', T') → q1', u', r'_{1}, s', t'