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凹透鏡成像
Author:
黃義凱
GeoGebra
New Resources
椭圆内切圆链
斐波那契螺旋弧线(表格法-可动态调节)
折扣
龙形曲线-分形龙
盈利與虧蝕
Discover Resources
最短
正六角柱
熱帶魚 (顏色變更)楊靜宜
線的面畫
正方体与球面的相交曲面
Discover Topics
Cone
Constructions
Tangent Function
Addition
Tangent Line or Tangent