利用几何图形演示数位分解乘法

GeoGebra 命令及参数

1. Polygon(E, G, I, H) → poly1, e, g, i, h
2. Point(h) → J
3. Point(g) → K
4. Point(e) → L
5. Point(i) → M
6. Segment(J, K) → a
7. Segment(L, M) → b
8. Polygon(N, Q, T, R) → poly2, n, q, t, r
9. Point(r) → U
10. Point(q) → V
11. Point(t) → W
12. Segment(O, W) → c
13. Segment(U, V) → d
14. Polygon(N_1, P_1, D_2, B_2) → poly3, n_1, p_1, d_2, b_2
15. Segment(T_1, V_1) → f
16. Segment(O_1, C_2) → j
17. Polygon(G_2, I_2, U_2, S_2) → poly4, g_2, i_2, u_2, s_2
18. Segment(M_2, O_2) → k
19. Segment(H_2, T_2) → l