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銀杏葉
Author:
連琨銘
GeoGebra
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近似值：有效數字
小数 的副本
判斷球體
sanjiaohanshu
長方體平面投影 (Codex版)
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y=ax²的圖形
平方差
長度和距離(毫米)
比例中的定值問題(三)
多点联动
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Scalene Triangles
Circle
Real Numbers
Rational Numbers
Root