Back Droite à l'infini French 無限遠直線 Japanese Oneindig verre rechte Dutch Reta imprópria Portuguese Dreaptă de la infinit Romanian 無窮遠線 Chinese

Line at infinity

"Ideal line" redirects here. For the ideal line in racing, see racing line.

In geometry and topology, the line at infinity is a projective line that is added to the real (affine) plane in order to give closure to, and remove the exceptional cases from, the incidence properties of the resulting projective plane. The line at infinity is also called the ideal line.[1]

  1. ^ Weisstein, Eric W. "Line at Infinity". mathworld.wolfram.com. Wolfram Research. Retrieved 28 December 2016.

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