English Dictionary

projective line

名詞

(projective geometry) A line that includes a point at infinity; a line in a projective space; a projective space of dimension 1.

日本語の意味

射影幾何学における直線。無限遠点を含む直線として捉えられる。 / 射影空間内の一次元部分空間、すなわち1次元の射影空間としての直線。

Visualizing the projective line helps students understand how parallel lines meet at infinity.

無限遠点を含む直線を視覚化することで、学生は平行な直線が無限遠で交わることを理解しやすくなる。

意味（1）

(projective geometry) A line that includes a point at infinity; a line in a projective space; a projective space of dimension 1.

A projective line in P²( R ), consists of the projective points defined by coplanar directions in R ³. In other words, just as the points in P²( R ) correspond to one-dimensional subspaces in R ³, the projective lines correspond to two-dimensional subspaces in R ³.

projective lines （ plural ）