Last Updated：2025/11/22

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(differential geometry) A unit vector at any given point P of a surface M which is perpendicular to the tangent plane T_P(M) of M at P. For a surface with parametrization ⃑x(u,v), it is given by

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surface normal

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Source Word

surface normal

Noun

(differential geometry) A unit vector at any given point P of a surface M which is perpendicular to the tangent plane T_P(M) of M at P. For a surface with parametrization ⃑x(u,v), it is given by

Japanese Meaning

（微分幾何）表面上の任意の点Pにおいて、その点での接平面に直交する単位ベクトル。

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Google Translation / DeepL Translation

パラメータ表示 x(u, v) 上の点 P における表面の単位法線ベクトルは、偏導関数 x_u と x_v の外積を正規化して得られる。

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Sense（1）

(differential geometry) A unit vector at any given point P of a surface M which is perpendicular to the tangent plane T_P(M) of M at P. For a surface with parametrization ⃑x(u,v), it is given by