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線性變換矩陣（二階）的副本
Author:
xiaodandan
,
arist
GeoGebra
New Resources
Earth with coastline
拼砌四邊形
Nested spiral octagon
直角坐標平面上的旋轉變換
小数 的副本
Discover Resources
鋸齒狀的函數
牟合方蓋：兩圓柱交集
Tetrahedron 四面體
达芬奇椭圆仪
镂空正方体案例对比
Discover Topics
Geometric Distribution
Algebra
Linear Equations
Exponent
Rotation