二次方程的图解

GeoGebra 命令及参数

1. Polygon(A, B, C, D) → q1, a_1, b_2, c_2, d
2. Polygon(E, F, G, H) → q2, e, f, g, h
3. Polygon(I, J, K, L) → q3, i, j, k, l
4. Polygon(M, N, O, P) → q4, m, n, o, p
5. Polygon(Q, R, S, T) → q5, q, r, s, t
6. Point(yAxis) → U
7. Point(yAxis) → Z
8. Polygon(Z, U, V, W) → q6, z_1, u, v, w
9. Polygon(A_1, B_1, C_1, D_1) → q7, f_1, b_1, c_1, d_1
10. Polygon(E_1, F_1, G_1, H_1) → q8, e_1, g_1, h_1, i_1
11. Polygon(I_1, J_1, K_1, L_1) → q9, j_1, k_1, l_1, m_1
12. Polygon(M_1, N_1, O_1, P_1) → q10, n_1, p_1, o_1, q_1
13. Polygon(Q_1, R_1, S_1, T_1) → q11, r_1, s_1, t_1, f_2
14. Polygon(Z_1, U_1, V_1, W_1) → q12, g_2, u_1, v_1, w_1
15. Point(yAxis) → A_2
16. Point(Circle[A_2, c]) → B_2
17. Segment(A_2, B_2) → seg1
18. Point(yAxis) → D_2
19. Polygon(D_2, A_2, C_2, E_2) → q13, d_2, a_2, h_2, e_2
20. Point(z_1) → F_2
21. Point(z_1) → G_2
22. Polygon(F_2, G_2, H_2, I_2) → q14, i_2, j_2, k_2, l_2
23. Point(d_2) → J_2
24. Point(d_2) → K_2
25. Polygon(J_2, K_2, L_2, M_2) → q15, m_2, n_2, p_2, q_2
26. Polygon(A, B, C, D) → q16, a_3, b_3, c_3, d_3
27. Polygon(N_2, O_2, P_2, Q_2) → q17, r_2, o_2, s_2, t_2
28. Polygon(R_2, S_2, T_2, W_2, U_2, V_2) → poly1, f_3, g_3, h_3, w_2, i_3, v_2
29. Polygon(N_2, Z_2, A_3, Q_2) → q18, j_3, z_2, k_3, l_3
30. Polygon(Z_2, O_2, P_2, A_3) → q19, m_3, n_3, p_3, q_3
31. Polygon(C, K_3, N_3, B) → q21, t_3, e_3, s_4, t_4
32. Polygon(D, B_3, C_3, C) → q20, d_4, r_3, s_3, c_4
33. Polygon(D_3, E_3, F_3, I_3, G_3, H_3) → poly2, f_4, g_4, h_4, i_4, j_4, k_4
34. Polygon(C, C_3, J_3, K_3) → q22, l_4, m_4, n_4, a_4
35. Polygon(P_3, L_3, M_3, O_3) → q23, p_4, q_4, r_4, o_3
36. Distance(S, T) → ST