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Author:
洪馷孺
GeoGebra
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近似值：有效數字
美國國旗 (Codex 版)
國旗 (Claude 版)
國旗 (作圖步驟直接餵給 Claude)
畫出對稱圖形
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Math_Class Activity 1
旋轉扇形
時距計算機
反比例函数的图像与性质
S8G5 增加的小方格
Discover Topics
Surface
Linear Equations
Perimeter
Equilateral Triangles
Random Experiments