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Author:
袁智强
GeoGebra
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撒针估算面积实验
龙形曲线-分形龙2
讀磅
圓的切線方程
多邊形的面積
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色彩視覺藝術：三色彩帶
動態比大小
Gauss Seidel 線性迭代求解
洋葱初中数学
椭圆内反射
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Fractions
Sequences and Series
Curve Sketching
Addition
Diagrams