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Author:
李春培
GeoGebra
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拼砌四邊形
異分母分數減法
四邉形 (四年級) 教師版
【案例】2018年全国1卷理科12题
柱體建築師
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利用工作表制作二分树
函數(簡易微積分)
判別式
座標網格的複數映射
正立方體裁邊 (Chamfered Cube)
多普勒效应动态演示
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Stochastic Process or Random Process
Median Line
Linear Programming or Linear Optimization
Triangles
Logic