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椭圆的离心率
Author:
孟宝兴
制作:@佳木斯韩清华 ,修订:孟宝兴
GeoGebra
New Resources
盈利與虧蝕
正方形雪花图案
常见四边形是否是双心四边形
折扣
龙形曲线-分形龙
Discover Resources
Percentage
販賣部草圖
f(x)=ax^2
两角和的正弦公式几何证明1
y=Asin(wx+f)图像变换
Discover Topics
Equilateral Triangles
Integers
Constructions
Surface
Arithmetic Operations