立方体的十一种图案
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①本范例演示立方体的十一种不同图案及其空间分布;②涉及的核心数学概念包括立体几何、向量、多边形、正弦余弦函数等;③作图要点提炼自构造摘要,使用了Vector(向量)、OrthogonalLine(垂线)、Polygon(多边形)、Midpoint(中点)、Translate(平移)、Segment(线段)、Mirror(镜像)等GeoGebra命令与对象;④适合高中及以上学生及数学爱好者学习立体几何与空间图形变换。
GeoGebra 命令及参数
Vector(B_1, X) → uVector(B_1, Z) → wOrthogonalLine(Vues, yAxis) → a_1OrthogonalLine(Vues, xAxis) → b_1Vector(B_1, Y) → vPolygon(L, K, N, M) → poly1, l, k_1, n, mPolygon(K, P, Q, N) → poly2, k_2, p, q, n_1Polygon(L, M, S, R) → poly3, l_1, m_1, s, rPolygon(N, V, W, M) → poly4, n_2, v_1, w_1, m_2Polygon(K, T, U, L) → poly5, k_3, t, u_1, l_2Polygon(B, Q, P, A) → poly6, b_2, q_1, p_1, a_2Midpoint(R, M) → DTranslate(S, Vector[(-((2 * v)))]) → S'Segment(S, C) → eTranslate(M, Vector[(-2 * v)]) → M'Segment(M, E) → fSegment(E, C) → hTranslate(N, Vector[(-2 * v)]) → N'Translate(Q, Vector[(-2 * v)]) → Q'_1Segment(Q, F) → iSegment(N, G) → jSegment(G, F) → d_1Translate(Q, Vector[(-2 * v)]) → Q'_2Translate(B, Vector[(-2 * v)]) → B'_1Segment(B, I) → e_1Segment(I, H) → f_1Segment(H, Q) → g_1Translate(K, Vector[(2 * v)]) → K'Translate(P, Vector[(2 * v)]) → P'_1Segment(P, J) → h_1Segment(J, A_1) → i_1Segment(A_1, K) → j_1Segment(B, H_1) → s_1Segment(H_1, C_1) → cSegment(C_1, A) → r_1Midpoint(N, P) → D_1Midpoint(k_1) → F_1Translate(A, Vector[(2 * v)]) → A'Translate(P, Vector[(2 * v)]) → P'Segment(A, G_1) → t_1Segment(G_1, I_1) → c_2Segment(I_1, P) → d_2Segment(J, K_1) → f_2Segment(P, L_1) → e_2Segment(L_1, K_1) → g_2Segment(M, W) → h_2Mirror(L_1, F_1) → O_1Mirror(K_1, F_1) → P_1Segment(M, M_1) → i_2Segment(N_1, J_1) → j_2Segment(J_1, M_1) → p_2