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二階線性變換
Author:
陳柄何
GeoGebra
New Resources
正方形雪花图案
三角函数 的副本
双心四边形
异形操场
比較五件物件的重量
Discover Resources
了解圓方程(1)
Quiz on Angles in a Circle 圓內的角：測驗
Centres
小棒
機率分布圖的副本
Discover Topics
Surface
Arithmetic
Geometry
Circumcircle or Circumscribed Circle
Centroid or Barycenter