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Poincaré disk
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
thumb|The Poincaré disk, with three lines drawn
Alternative forms
en Poincaré disc
Etymology
After Henri Poincaré. en
Noun
The hyperbolic plane, viewed as a disk so that Euclidean circles and lines Euclidean-perpendicular to the disk's surface are hyperbolic lines.
Translations
hyperbolic plane
Finnish: fi Poincarén kiekko
Spanish: es disco de Poincaré m
See also
hyperbolic geometry
Further reading
en eponyms
en Circle Non-Euclidean geometry Shapes