蛛网图演示
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①本范例演示了蛛网图,用于可视化迭代函数序列的动态行为;②涉及核心数学概念包括函数迭代、差分方程、斜率分析及角度关系;③作图要点:使用 GeoGebra 的 Segment(线段)和 Textfield(文本框)命令,构建了函数图像、点集及动态连线;④适合高中及以上数学学习者,用于理解离散动力系统和函数迭代特性。
GeoGebra 命令及参数
Segment(U, B) → hSegment(B, V) → iSegment(V, C) → jSegment(C, W) → kSegment(W, D) → lSegment(D, Z) → mSegment(Z, E) → nSegment(E, A_1) → pSegment(A_1, F) → qSegment(B_1, F) → rSegment(B_1, G) → sSegment(G, C_1) → tSegment(C_1, H) → aSegment(H, D_1) → bSegment(D_1, I) → cSegment(I, E_1) → dSegment(E_1, J) → eSegment(J, F_1) → f_1Segment(F_1, K) → g_1Segment(K, G_1) → h_1Segment(G_1, L) → i_1Segment(L, H_1) → j_1Segment(H_1, M) → k_1Segment(M, I_1) → l_1Segment(I_1, N) → m_1Segment(N, J_1) → n_1Segment(J_1, O) → p_1Segment(O, K_1) → q_1Segment(K_1, P) → r_1Segment(P, L_1) → s_1Segment(L_1, Q) → t_1Segment(Q, M_1) → a_1Segment(M_1, R) → b_1Segment(R, N_1) → c_1Segment(N_1, S) → d_1Segment(S, O_1) → e_1Segment(O_1, T) → f_2Textfield(g) → InputBox1Textfield(B1) → InputBox2