沙盘振动物理演示

GeoGebra 命令及参数

1. Line(G, H) → i
2. Line(F, E) → k
3. Line(D, B) → g
4. Line(I, J) → j
5. PointIn(f) → O
6. Line(L, O) → h
7. Intersect(j, i) → P
8. Intersect(j, k) → Q
9. Line(P, Q) → l
10. Mirror(P, L) → P'
11. Mirror(Q, O) → Q'
12. Line(P', Q') → m
13. Point(m) → N
14. Point(l) → R
15. Segment(R, O) → p
16. Segment(O, N) → q
17. Segment(N, L) → r
18. Segment(L, R) → s
19. Segment(Q', J) → n
20. Segment(J, P) → t
21. Segment(P, P') → b
22. Segment(P', Q') → c
23. Segment(T, U) → d
24. Segment(U, M) → e
25. Segment(M, S) → f_1
26. Segment(S, T) → g_1