tangent surface

Japanese: tangent surface(英語表記)tangentsurface
tangent surface

...A surface obtained by fixing a point on a line in space and moving this line along a constant curve is called a conical surface, and a surface obtained by moving a line parallel to a constant curve in space is called a cylindrical surface. A surface obtained by moving a line tangent to a space curve is called a tangent surface. Surfaces obtained by moving a line in space according to a certain law, like these surfaces, are generally called ruled surfaces. ...

*Some of the terminology that mentions "tangent surface" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…空間で直線上の1点を固定して,この直線を定曲線に沿って動かすことによって得られる曲面を錐面conical surfaceと呼び,空間で直線を定曲線に沿って平行に動かすことによって得られる曲面を柱面cylindrical surfaceと呼ぶ。また,直線を一つの空間曲線に接するように動かすことによって得られる曲面を接線曲面tangent surfaceと呼ぶ。これらの曲面のように,空間で直線を一定の法則に従って動かすことによって得られる曲面を一般に線織面と呼ぶ。…

※「tangent surface」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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