矩形薄板的重心

GeoGebra 命令及参数

1. Polygon(A, B, C, D) → q1, a_1, b_1, c, d
2. Point(q1) → N
3. Point(q1) → M
4. Point(q1) → L
5. Point(q1) → K
6. DynamicCoordinates(K, round(x(K)), round(y(K))) → P_1
7. DynamicCoordinates(L, round(x(L)), round(y(L))) → P_2
8. DynamicCoordinates(M, round(x(M)), round(y(M))) → P_3
9. DynamicCoordinates(N, round(x(N)), round(y(N))) → P_4
10. Vector(P_1, E) → u
11. Vector(P_2, F) → v
12. Vector(P_3, G_{1}) → w
13. Vector(P_4, H) → e
14. Midpoint(A, B) → I
15. Midpoint(A, D) → J
16. Segment(P, G) → h
17. Segment(Q, G) → i
18. Midpoint(Q, G) → R
19. Midpoint(P, G) → S