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Author:
李春培
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GeoGebra
New Resources
Earth with coastline
判斷球體
找出對稱軸
近似值:有效數字
sanjiaohanshu
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範例:自製工具「格線」
橢圓的軌跡
Is this a prism 9
三角形
圆内的迭代反射2
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Hyperbola
Multiplication
Natural Numbers
Continuity
Trigonometry