unit circle

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noun Mathematics.

a circle whose radius has a length of one unit.

QUIZ

ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?

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Question 1 of 8

Which of the following words describes “sky blue”?

navy

beryl

azure

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Origin of unit circle

First recorded in 1950–55

Words nearby unit circle

unitary matrix, Unitas, unit card, unit cell, unit character, unit circle, unit cost, unite, united, United Arab Emirates, United Arab Republic

How to use unit circle in a sentence

“Your six angles become six points on the unit circle, and you need those complex numbers to satisfy a polynomial equation,” said Weissman.
Tetrahedron Solutions Finally Proved Decades After Computer Search|Kevin Hartnett|February 2, 2021|Quanta Magazine
“Stay in formation,” a sergeant from the ceremonial unit said over a public address system to the cops along the street.
Funeral Protest Is Too Much for NYPD Union Boss|Michael Daly|January 5, 2015|DAILY BEAST
My father was in an intelligence unit for the U.S. Navy, as he had been in World War II.
The Story Behind Lee Marvin’s Liberty Valance Smile|Robert Ward|January 3, 2015|DAILY BEAST
Bitcoin began 2013 with a roaring price of $770 per unit, and businesses right and left were converting to the ethereal product.
You Were Wrong About Miley & Bitcoin: 2014’s Failed Predictions|Nina Strochlic|December 31, 2014|DAILY BEAST

So, Linklater just won Best Director by the New York Film Critics Circle.
Coffee Talk with Ethan Hawke: On ‘Boyhood,’ Jennifer Lawrence, and Bill Clinton’s Urinal Exchange|Marlow Stern|December 27, 2014|DAILY BEAST
Julio had come full circle and had returned to Cuba as a tourist in his own country.
Cuban Hip-Hop Was Born in Alamar|Daniel Levin|December 26, 2014|DAILY BEAST
Wharton and Louis had withdrawn their hands at the same instant they caught his eye; and the Duke turned into the circle.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
It was the conversation of every circle; and discussed according to the dispositions, or views of the speakers.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
We (the officers) were sitting in a circle round the general and Alcalde, both of whom appeared uneasy and anxious.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
His books were read in our homes, often aloud to the family circle by paterfamilias, and moved us to laughter or tears.
Fifty Years of Railway Life in England, Scotland and Ireland|Joseph Tatlow
A child's attempt to represent a man appears commonly to begin by drawing a sort of circle for the front view of the head.
Children's Ways|James Sully