坐标轴反射变换

GeoGebra 命令及参数

1. Polygon((-10, 6.4), (25, 6.4), (25, 10), (-10, 10)) → TopBox, f, g, h, i
2. Join(Sequence[Sequence[(i, j), i, -7, maxx, 1], j, miny, 6, 1]) → GridSpace
3. Polygon((7.4, 8), (25, 8), (25, -8), (7.4, -8)) → RightBox, j, k, l, m
4. Point(GridSpace) → A
5. Point(GridSpace) → B
6. Point(GridSpace) → C
7. Segment(A, B) → AB
8. Segment(B, C) → BC
9. Segment(C, A) → CA
10. Mirror(A, x = 0) → A'
11. Mirror(B, x = 0) → B'
12. Mirror(C, x = 0) → C'
13. Mirror(A, y = 0) → A'_1
14. Mirror(B, y = 0) → B'_1
15. Mirror(C, y = 0) → C'_1
16. Segment(A', B') → AB'
17. Segment(B', C') → BC'
18. Segment(C', A') → CA'
19. Segment(A'_1, B'_1) → AB'_1
20. Segment(B'_1, C'_1) → BC'_1
21. Segment(C'_1, A'_1) → CA'_1
22. Segment((0, -6.4), (0, 6.4)) → Yaxis
23. Segment((-7.4, 0), (7.4, 0)) → Xaxis
24. Segment((0, 6.3), (0, -7)) → yaxis