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test2
Author:
Cheuky Li
GeoGebra
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龙形曲线-分形龙2
直線的斜率：水平變化 & 鉛垂變化
撒针估算面积实验
三角函数 的副本
盈利與虧蝕
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平方數平方數
Integer
象限
勝者即正義，可愛即正義~
折纸角度探究
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Mathematics
Parabola
Addition
Pyramid
Upper and Lower Sum or Riemann Sum