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四則混合
Author:
周錦鋒
GeoGebra
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龙形曲线-分形龙
双心四边形
直線的斜率：水平變化 & 鉛垂變化
百分數及其應用
斐波那契螺旋弧线（表格法）
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圓柱的截面
Values of nCr & nPr 排列與組合的值
線段前後分割
三角形
Progressive Formula
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Tangent Line or Tangent
Dilation
Equilateral Triangles
Statistical Characteristics
Geometric Distribution