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the definition of ellipse
Author:
丁明智
GeoGebra
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龙形曲线-分形龙
科氏力 (Coriolis Force)
斐波那契螺旋弧线（表格法）
比較五件物件的重量
双心四边形
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複數等比級數 (4.4)
夾擠單位圓的面積
S3 Percentages
轴对称
動量守恆相圖分析
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Function Graph
Mathematics
Surface
Linear Functions
Triangles