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線性變換矩陣（二階）的副本
Author:
xiaodandan
,
arist
GeoGebra
New Resources
兩位數除以一位數（二）
錐體建築師
画直线等分三角形的面积
三位數除以一位數（二）
拼砌四邊形
Discover Resources
平移動畫(平移加滑桿)
拋物線(開口向上)
圆心角和圆周角
正多角錐(可輸入底面邊數)
cube
Discover Topics
Solids or 3D Shapes
Equations
Triangles
Logarithmic Functions
Vectors 2D (Two-Dimensional)