连续两次平行轴反射

GeoGebra 命令及参数

1. Polygon(A, B, C) → t1, c, a, b
2. Line(D, E) → f
3. Line(F, f) → g
4. Mirror(A, f) → A'
5. Mirror(B, f) → B'
6. Mirror(C, f) → C'
7. Polygon(A', B', C') → t1', c', a', b'
8. Mirror(A', g) → A''
9. Mirror(B', g) → B''
10. Mirror(C', g) → C''
11. Polygon(A'', B'', C'') → t1'', c'', a'', b''
12. Vector(A, A'') → u
13. Translate(A, u) → A'_1
14. Translate(B, u) → B'_1
15. Translate(C, u) → C'_1
16. Translate(A, Vector[(h * u)]) → A'_2
17. Translate(B, Vector[(h * u)]) → B'_2
18. Translate(C, Vector[(h * u)]) → C'_2
19. Polygon(A'_2, B'_2, C'_2) → t1'_1, c'_2, a'_2, b'_2
20. SelectedIndex(Bahasa) → nn