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In-centre
Author:
johnmayhk
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程自顺96
对角线互相垂直的四边形，证倍分关系的副本
傅里叶级数 Fourier series
程自顺98
学问思1206-2
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貝氏曲線 (Bezier Curve)
數字組合
範例一
sin平移
未命名
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Numbers
Centroid or Barycenter
Pythagoras or Pythagorean Theorem
Rhombus
Solids or 3D Shapes
