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traveling wave01
Author:
ken@ylshsap
GeoGebra
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盈利與虧蝕
双心四边形
第八周作业2
斐波那契螺旋弧线（表格法）
三角函数 的副本
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正n邊形內角與外角
Generalized Pythagorean Theorem
ghseh 二次函數描點法上下平移-1
二維點陣列變化
一线三等角模型
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Volume
Circle
Sine
Similar Triangles
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