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Heron formula
Author:
ralphchen
GeoGebra
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盈利與虧蝕
科赫雪花
撒针估算面积实验
圓的基本性質
直線的斜率：水平變化 & 鉛垂變化
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複雜的解法
線性規劃xgeogebra
三角函數
正方形與圓中點軌跡(1060724)
公倍數與最小公倍數（L.C.M.）
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Exponential Functions
Linear Equations
Perimeter
Polygons
Derivative