矩阵乘法的分配律

GeoGebra 命令及参数

1. Polygon(A, B, C, D) → poly1, a, b, c, d
2. Midpoint(A, B) → E
3. Midpoint(B, C) → F
4. Midpoint(C, D) → G
5. Midpoint(D, A) → H
6. Segment(E, G) → e
7. Segment(H, F) → f
8. Conic(Q, R, S, T, U) → p
9. Conic(C_1, D_1, E_1, F_1, G_1) → r
10. Conic(H_1, I_1, J_1, K_1, L_1) → s
11. Conic(M_1, N_1, O_1, P_1, Q_1) → t
12. Conic(R_1, S_1, T_1, U_1, V_1) → c_1
13. Conic(I, J, K, B_1, W_1) → g
14. Conic(Z_1, A_2, B_2, C_2, D_2) → h
15. Conic(F_2, G_2, H_2, I_2, E_2) → q
16. Point(p) → J_2
17. Vector(K, J_2) → u
18. Vector(B_2, K_2) → v
19. Vector(G_2, L_2) → w
20. Conic(Q, R, S, T, U) → p_2