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矩阵（自动）计算（数据为0-5的随机数）
Author:
苏州金门布衣
Topic:
Matrices
GeoGebra
New Resources
小数 的副本
Fibonacci Clock
Nested spiral octagon
算柱 (兩位數)
畫出對稱圖形
Discover Resources
Quiz on Solving Right Triangles (Finding Angles) 解直角三角形：測驗2（求角度）
圖A
動畫基本滑桿
各種五邊形
Copia de 模版 - 無框黑板
Discover Topics
Similar Triangles
Exponent
Plane Figures or Shapes
Natural Numbers
Algebra