unit circle

English

Noun

unit circle (plural unit circles)

  1. (geometry) 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

See also

This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.