English Dictionary

radius vector

名詞

(mathematics) A straight line (or the length of such line) connecting any point, as of a curve, with a fixed point, or pole, round which the straight line turns, and to which it serves to refer the successive points of a curve, in a system of polar coordinates.

日本語の意味

極座標系において、曲線上の任意の点と定点（極）とを結ぶ直線、またはその長さを示すもの

In polar coordinates, the radius vector from the pole to a point on the curve determines the point's distance and angle, allowing the curve to be parameterized.

極座標では、極から曲線上の点への半径ベクトルが、その点の距離と角度を決定し、曲線をパラメータ表示できるようにします。

意味（1）

(mathematics) A straight line (or the length of such line) connecting any point, as of a curve, with a fixed point, or pole, round which the straight line turns, and to which it serves to refer the successive points of a curve, in a system of polar coordinates.

意味（2）

(astronomy) An ideal straight line joining the center of an attracting body with that of a body describing an orbit around it, as a line joining the sun and a planet or comet, or a planet and its satellite.

radii vectores （ plural ）

radius vectors （ plural ）