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gyzel 橢圓的反射
Author:
均一
GeoGebra
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盈利與虧蝕
异形操场
正方形雪花图案
第八周作业3
龙形曲线-分形龙2
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圓內接四邊形 ABCD ...,求 sinθ=?
餘弦定理
Mearm2
二重積分 (Double Integral)的副本
函数作图工具的副本
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Cylinder
Square
Translation
Rational Numbers
Differential Calculus