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test1
Author:
rongsuei
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Nested spiral octagon
拼砌四邊形
四邊形的特性
畫出對稱圖形
Earth with coastline
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test
長方體透視圖(三頂點組成三角形)
sin,cos比大小
旋轉線段
旋转的线段组成面
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Geometry
Real Numbers
Cone
Conditional Probability
Probability