矩阵乘法动画示例

矩阵乘法动画示例
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2016-10-06 00:36
①本范例通过动画演示矩阵乘法的计算过程与结果;②涉及的核心数学概念包括矩阵运算、线性代数;③作图要点——使用了Mod、Polygon等GeoGebra命令和对象,如A、B、C矩阵及text2等文本对象;④适合高中及以上学生学习和理解矩阵乘法原理,也可用于教学演示。

GeoGebra 命令及参数

  1. Mod(9, 6) → a
  2. Polygon(A, (x(A), y(A_1)), A_1, (x(A_1), y(A))) → poly1, a_1, g, a_2, h
  3. Polygon(E, (x(E), y(B_1)), B_1, (x(B_1), y(E))) → poly2, e, i, b_1, j
  4. Polygon(S, (x(S), y(C_1)), C_1, (x(C_1), y(S))) → poly3, s, k, c_1, l
  5. Polygon(S, (x(S), y(D_1)), D_1, (x(D_1), y(S))) → poly4, s_1, m, d_1, n
  6. Polygon(H, (x(H), y(E_1)), E_1, (x(E_1), y(H))) → poly5, h_1, p, e_1, q
  7. Polygon(V, (x(V), y(F_1)), F_1, (x(F_1), y(V))) → poly6, v, r, f_1, b
  8. Polygon(I, (x(I), y(G_1)), G_1, (x(G_1), y(I))) → poly7, i_1, c, g_1, d
  9. Polygon(W, (x(W), y(H_1)), H_1, (x(H_1), y(W))) → poly8, w, j_1, h_2, k_1
  10. Polygon(C, (x(C), y(I_1)), I_1, (x(I_1), y(C))) → poly9, c_2, l_1, i_2, m_1
  11. Polygon(T, (x(T), y(H_1)), H_1, (x(H_1), y(T))) → poly10, t_1, n_1, h_3, p_1