反射后的图形绘制

GeoGebra 命令及参数

1. Random(-4, 4) → a
2. Random(-4, 4) → b
3. Random(-4, 4) → c
4. Random(-4, 4) → d
5. Random(-4, 4) → e
6. Random(-4, 4) → f
7. Random(-4, 4) → g
8. Random(-4, 4) → h
9. Polygon(A, B, C, D) → q1, a_1, b_1, c_1, d_1
10. Segment(A, B) → i
11. Segment(B, C) → j
12. Segment(C, D) → k
13. Segment(D, A) → l
14. Random(-2, 2) → m
15. Random(-2, 2) → n
16. Random(-1, 1) → o
17. RandomElement({y = m, x = n, y = (o * x) + m}) → q
18. Mirror(A, q) → A'
19. Mirror(B, q) → B'
20. Mirror(C, q) → C'
21. Mirror(D, q) → D'
22. Polygon(A', B', C', D') → q1', a', b', c', d'
23. DynamicCoordinates(G, round(x(G)), round(y(G))) → A_1
24. DynamicCoordinates(H, round(x(H)), round(y(H))) → B_1
25. DynamicCoordinates(E, round(x(E)), round(y(E))) → C_1
26. DynamicCoordinates(F, round(x(F)), round(y(F))) → D_1
27. Polygon(A_1, B_1, C_1, D_1) → q2, p, r, s, t
28. Segment(C_1, D_1) → f_1
29. Segment(A_1, D_1) → g_1
30. Segment(A_1, B_1) → h_1
31. Segment(B_1, C_1) → i_1
32. Segment(D_1, A_1) → j_1
33. If(A_1 ≟ A' ∧ B_1 ≟ B' ∧ C_1 ≟ C' ∧ D_1 ≟ D', "Correct!", "No. Try again.") → text1