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期中五-3.1
Author:
俞长家
GeoGebra
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椭圆内切圆链
斐波那契螺旋弧线(表格法)
第八周作业2
中华人民共和国国旗
第八周作业1
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數學傳播39卷4期, 平面幾何公式思考
同分母分數除法
Similar Triangles
HKCEE 2009 Q17
GeoGebra创建的小游戏集
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Similar Triangles
Numbers
Calculus
Parametric Curves
Equilateral Triangles