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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

abstraction, abstract entity go
a general concept formed by extracting common features from specific examples

relation go
an abstraction belonging to or characteristic of two entities or parts together

mathematical relation go
a relation between mathematical expressions (such as equality or inequality)

function, mapping, map, mathematical function, single-valued function go
(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)

trigonometric function, circular function
function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle

noun.relation

12 Subcategories

sin, sine go
ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
arc sine, arcsine, arcsin, inverse sine go
the inverse function of the sine
cos, cosine go
ratio of the adjacent side to the hypotenuse of a right-angled triangle
arc cosine, arccosine, arccos, inverse cosine go
the inverse function of the cosine
tan, tangent go
ratio of the opposite to the adjacent side of a right-angled triangle
arc tangent, arctangent, arctan, inverse tangent go
the inverse function of the tangent
cotangent, cotan go
ratio of the adjacent to the opposite side of a right-angled triangle
arc cotangent, arccotangent, inverse cotangent go
the inverse function of the cotangent
secant, sec go
ratio of the hypotenuse to the adjacent side of a right-angled triangle
arc secant, arcsecant, arcsec, inverse secant go
the inverse function of the secant
cosecant, cosec go
ratio of the hypotenuse to the opposite side of a right-angled triangle
arc cosecant, arccosecant, inverse cosecant go
the angle that has a cosecant equal to a given number