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circular function

Definitions of circular function
  1. noun
    function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
    synonyms: trigonometric function
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    types:
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    sin, sine
    ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
    arc sine, arcsin, arcsine, inverse sine
    the inverse function of the sine; the angle that has a sine equal to a given number
    cos, cosine
    ratio of the adjacent side to the hypotenuse of a right-angled triangle
    arc cosine, arccos, arccosine, inverse cosine
    the inverse function of the cosine; the angle that has a cosine equal to a given number
    tan, tangent
    ratio of the opposite to the adjacent side of a right-angled triangle
    arc tangent, arctan, arctangent, inverse tangent
    the inverse function of the tangent; the angle that has a tangent equal to a given number
    cotan, cotangent
    ratio of the adjacent to the opposite side of a right-angled triangle
    arc cotangent, arccotangent, inverse cotangent
    the inverse function of the cotangent; the angle that has a cotangent equal to a given number
    sec, secant
    ratio of the hypotenuse to the adjacent side of a right-angled triangle
    arc secant, arcsec, arcsecant, inverse secant
    the inverse function of the secant; the angle that has a secant equal to a given number
    cosec, cosecant
    ratio of the hypotenuse to the opposite side of a right-angled triangle
    arc cosecant, arccosecant, inverse cosecant
    the angle that has a cosecant equal to a given number
    type of:
    function, map, mapping, mathematical function, single-valued function
    (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)
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