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中心对称图形
Author:
宋晓燕
GeoGebra
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長方體平面投影 (Codex版)
Fibonacci Clock
直角坐標平面上的旋轉變換
畫出對稱圖形
近似值：有效數字
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解方程式
GeoGebra資料上傳
Apollonius Problem 5 CPP pocelet
數學傳播39卷4期, 平面幾何公式思考
正玄函数变化
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Vectors 2D (Two-Dimensional)
Mathematics
Equations
Orthocenter
Square