unit circle

English

Noun

 unit circle on Wikipedia

unit circle (plural unit circles)

1. A circle of radius 1.
2. (trigonometry, the unit circle) The circle of radius 1 with centre at the origin, used in defining trigonometric functions.

Usage notes

• Unit circle is seldom used in the simple geometric sense, where "a circle of radius 1" is much more common.

Translations

circle of radius 1

Finnish: yksikköympyrä French: cercle unité (fr) m German: Einheitskreis (de) m Italian: circonferenza unitaria f Spanish: circunferencia unitaria f Swedish: enhetscirkel (sv) c Tagalog: isahing bilog

circle of radius 1 with centre at the origin, used in trigonometry

Czech: jednotková kružnice f Dutch: eenheidscirkel m Finnish: yksikköympyrä French: cercle trigonométrique (fr) m, cercle unité (fr) m German: Einheitskreis (de) m Hungarian: egységkör (hu) Italian: circonferenza unitaria f Polish: okrąg jednostkowy m Russian: едини́чный круг m (jediníčnyj krug) Spanish: circunferencia unitaria f Swedish: enhetscirkel (sv) c Tagalog: isahing bilog

See also

• unit hyperbola
• unit sphere