The functions describing the horizontal and vertical positions of a point on a circle as a function of angle (cosine and sine ) and those functions
derived from them:
Circular functions are also called trigonometric
functions , and the study of circular functions is called trigonometry .
See also Cosecant ,
Cosine ,
Cotangent ,
Elliptic
Function ,
Generalized Hyperbolic
Functions ,
Hyperbolic Functions ,
Secant ,
Sine ,
Tangent ,
Trigonometric
Functions ,
Trigonometry
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References Abramowitz, M. and Stegun, I. A. (Eds.). "Circular Functions." §4.3 in Handbook
of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. Referenced on Wolfram|Alpha Circular Functions
Cite this as:
Weisstein, Eric W. "Circular Functions."
From MathWorld https://mathworld.wolfram.com/CircularFunctions.html
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