因子工厂Logo
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该范例演示了一个因子工厂Logo的绘制过程。涉及的核心数学概念包括向量、旋转和平行四边形。通过使用GeoGebra命令如Vector、Rotate、Polygon等,可以构造出Logo的各个组成部分。适合用于高中几何教学,帮助学生理解向量和几何变换的概念。
GeoGebra 命令及参数
Vector(A, B) → uOrthogonalVector(u) → vRotate(A, 70°, C) → A'Line(A', C) → hLine(H, h) → mLine(A, m) → tLine(A, B) → fLine(S, f) → f_1Line(C_1, f_1) → r_1Intersect(r_1, h) → E_1OrthogonalLine(J, f) → lIntersect(m, l) → OMidpoint(H, O) → PLine(P, f) → aIntersect(t, a) → QLine(I_1, t) → t_1Intersect(t_1, f_1) → J_1OrthogonalLine(D, f) → iLine(Z, h) → s_1Intersect(s_1, r_1) → EIntersect(s_1, f_1) → G_1Intersect(s_1, a) → F_1OrthogonalLine(M, f) → pLine(N, f) → bIntersect(s_1, b) → H_1Intersect(b, h) → RIntersect(f_1, t) → TIntersect(f_1, m) → B_1Circle(A, B) → cOrthogonalLine(A, f) → gAngle(A, C, A') → αOrthogonalLine(F, f) → jIntersect(h, j) → GOrthogonalLine(H, f) → kIntersect(h, k) → IOrthogonalLine(C, f) → nIntersect(m, n) → LLine(G, f) → qIntersect(m, g) → KLine(K, q) → rMidpoint(K, U) → VMirror(G, V) → G'Polygon(E_1, E, F_1, I_1, J_1, G_1, H_1, R) → poly2, e, h_1, j_1, l_1, m_1, n_1, p_1, q_1Mirror(I, V) → I'Polygon(G, U, I', G', K, I) → poly1, g_1, u_1, i', g', k_1, i_1LineBisector(I, K) → sIntersect(s, q) → WCircleArc(W, K, I) → dMirror(d, V) → d'Circle(K_1, D_1) → c_1