Noun
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function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
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trigonometric function |
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mathematical function,
single-valued function,
map,
mapping,
function a diagrammatic representation of the earth's surface (or part of it)
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sine,
sin ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
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arc sine,
arcsin,
arcsine,
inverse sine the inverse function of the sine; the angle that has a sine equal to a given number
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cosine,
cos ratio of the adjacent side to the hypotenuse of a right-angled triangle
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arc cosine,
arccos,
arccosine,
inverse cosine the inverse function of the cosine; the angle that has a cosine equal to a given number
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tangent,
tan ratio of the opposite to the adjacent side of a right-angled triangle
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arc tangent,
arctan,
arctangent,
inverse tangent the inverse function of the tangent; the angle that has a tangent equal to a given number
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cotan,
cotangent ratio of the adjacent to the opposite side of a right-angled triangle
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arc cotangent,
arccotangent,
inverse cotangent the inverse function of the cotangent; the angle that has a cotangent equal to a given number
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secant,
sec ratio of the hypotenuse to the adjacent side of a right-angled triangle
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arc secant,
arcsec,
arcsecant,
inverse secant the inverse function of the secant; the angle that has a secant equal to a given number
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cosec,
cosecant ratio of the hypotenuse to the opposite side of a right-angled triangle
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