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unit circle

noun, Mathematics
1.
a circle whose radius has a length of one unit.
Origin
1950-1955
1950-55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for unit circle
  • Extend the domain of trigonometric functions using the unit circle.
  • Trigonometric functions defined on the unit circle will be related to trigonometric functions defined in right triangles.
  • The semi-circular distribution is the distribution onto one axis of the points uniformly distributed within the unit circle.
  • Properties of the unit circle and definitions of circular functions will be applied.
  • Sketch the unit circle and represent angles in standard position.
  • Define the six trigonometric functions in terms of right triangles and the unit circle.
  • Relate trigonometric functions defined on the unit circle to trigonometric functions defined in right triangles.
  • FT convergence of to zero thus requires that the eigenvalues of lie inside the unit circle.

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