unit circle


Definition of unit circle

: a circle having a radius of 1

Examples of unit circle in a Sentence

Recent Examples on the Web Some may fall inside the unit circle, others right on it, and still others outside it. Quanta Magazine, 14 May 2020 Since going a distance π takes you halfway around the unit circle, cos(π)=-1 and sin(π)=0, so eiπ=-1. Lorenzo Sadun, Slate Magazine, 14 Mar. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unit circle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of unit circle

1852, in the meaning defined above

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Time Traveler for unit circle

Time Traveler

The first known use of unit circle was in 1852

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Dictionary Entries Near unit circle

unit character

unit circle

unit class

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Statistics for unit circle

Cite this Entry

“Unit circle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unit%20circle. Accessed 11 Aug. 2022.

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