旋转变换 by Jim Wysocki

GeoGebra 命令及参数

1. Rotate(A, α, I) → A'
2. Rotate(B, α, I) → B'
3. Rotate(C, α, I) → C'
4. Mirror(C, h) → C'_3
5. Mirror(B, h) → B'_3
6. Mirror(A, h) → A'_3
7. Polygon(A, B, C) → poly1, c, a, b
8. Angle(A, B, C) → ABC
9. Angle(B, C, A) → BCA
10. Angle(C, A, B) → CAB
11. Vector(D, E) → u
12. Angle(B', C', A') → A'C'B'
13. Angle(C', A', B') → B'A'C'
14. Angle(A', B', C') → A'B'C'
15. Segment(D, F) → f
16. Segment(E, F) → g
17. Midpoint(f) → G
18. Midpoint(g) → H
19. Polygon(A'_3, B'_3, C'_3) → poly1'_1, c'_2, a'_2, b'_2
20. Polygon(A', B', C') → poly1'_2, c', a', b'