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光源とベクトル
Author:
ﾛ2298
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standingwave-reflection
対数螺旋
サイクロイド
円の伸開線
standingwave
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接線と微分係数
reach_10_3
回転体
GHS2417
軌跡と楕円
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Quadrilaterals
Correlation
Pyramid
Scalene Triangles
Similar Triangles