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Author:
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正弦型函数水平伸缩观察
Template: Symmetry04
圖解兩向量所張開之平行四邊形面積
Cross Product for 2D Vectors (平面外積)
错觉平行线
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判斷柱體 7
Apollonius Problem 7 CCP Inversion simple 12
真方位角與羅盤方位角
兩橢圓交集
圓-3
Discover Topics
Parallelogram
Symmetry
Quadrilaterals
Multiplication
Centroid or Barycenter
