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椭圆的一种画法.许兴华数学
Author:
许兴华数学
Topic:
Conic Sections
,
Ellipse
GeoGebra
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球體建築師
球体的体积推导
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
畫出對稱圖形
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圖C
畢氏定理
String Art
最短距離
科赫雪花
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Linear Equations
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