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圓錐曲線的光學性質
Author:
陳隆期
GeoGebra
New Resources
sanjiaohanshu
錐體建築師
近似值：有效數字
畫出對稱圖形
算柱 (兩位數)
Discover Resources
sierpinski carpet
ego-motion
Rectangle
(006)80201辛宇婕
利用頂點描述二次函數 的複本
Discover Topics
Area
Standard Deviation
Incircle or Inscribed Circle
Rotation
Conditional Probability