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克莱因瓶
Author:
刘金堂
Topic:
Surface
GeoGebra
New Resources
比較五件物件的重量
盈利與虧蝕
科赫雪花
直線的斜率：水平變化 & 鉛垂變化
常见四边形是否是双心四边形
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伸縮變換
指數與對數的對稱性
cycloid
正立方體展開
圓心在同一直線上且相切的圓(半徑可改變)
Discover Topics
Prism
Straight Lines
Sphere
Incircle or Inscribed Circle
Sequences and Series