探索导数图像
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①本范例演示函数与其导数图像之间的关系,直观展示导数表示函数变化率的几何意义;②涉及核心数学概念包括导数、函数图像、变化率、几何意义;③作图要点运用了Point(点)、Circle(圆)、Intersect(交点)、Segment(线段)、Derivative(导数)等GeoGebra命令与对象;④适合高中及以上学生及微积分初学者学习导数几何意义和函数分析。
GeoGebra 命令及参数
Point(e) → ACircle(B, 0.8) → kIntersect(j, k, 1) → CIntersect(j, k, 2) → DSegment(C, D) → lDerivative(f) → f'Point(h) → ECircle(F, 0.8) → qIntersect(p, q, 1) → GIntersect(p, q, 2) → HSegment(G, H) → nPoint(g) → ICircle(J, 0.8) → sIntersect(r, s, 1) → MIntersect(r, s, 2) → NSegment(M, N) → tPoint(i) → KCircle(L, 0.8) → c_1Intersect(f_1, c_1, 1) → OIntersect(f_1, c_1, 2) → PSegment(O, P) → a_1Point(b_1) → QCircle(R, 0.8) → k_1Intersect(p_1, k_1, 1) → SIntersect(p_1, k_1, 2) → TSegment(S, T) → i_1Point(d_1) → UCircle(V, 0.8) → r_1Intersect(q_1, r_1, 2) → WIntersect(q_1, r_1, 1) → ZSegment(Z, W) → j_1Point(e_1) → A_1Circle(B_1, 0.8) → t_1Intersect(s_1, t_1, 2) → C_1Intersect(s_1, t_1, 1) → D_1Segment(D_1, C_1) → l_1Point(g_1) → E_1Circle(F_1, 0.8) → c_2Intersect(f_2, c_2, 1) → G_1Intersect(f_2, c_2, 2) → H_1Segment(G_1, H_1) → m_1Point(h_1) → I_1Circle(J_1, 0.8) → d_2Intersect(g_2, d_2, 1) → K_1Intersect(g_2, d_2, 2) → L_1Segment(K_1, L_1) → n_1