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教学素材：离心率相同的椭圆
Author:
清风拂琴，陌上花开
GeoGebra
New Resources
异形操场
龙形曲线-分形龙
斐波那契螺旋弧线（表格法-可动态调节）
直線的斜率：水平變化 & 鉛垂變化
盈利與虧蝕
Discover Resources
有趣的反例
畢氏定理實作
多普勒3D
正圆台展开图
分割多边形
Discover Topics
LCM and GCD
Arithmetic Operations
Inequalities
Numbers
Upper and Lower Sum or Riemann Sum