mathematical function
Noun

(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) (synset 113806028)
domain category: math, mathematics, maths  a science (or group of related sciences) dealing with the logic of quantity and shape and arrangementhypernym: mathematical relation  a relation between mathematical expressions (such as equality or inequality)hyponym:
 multinomial, polynomial  a mathematical function that is the sum of a number of terms
 expansion  a function expressed as a sum or product of terms
 inverse function  a function obtained by expressing the dependent variable of one function as the independent variable of another; f and g are inverse functions if f(x)=y and g(y)=x
 kronecker delta  a function of two variables i and j that equals 1 when i=j and equals 0 otherwise
 metric, metric function  a function of a topological space that gives, for any two points in the space, a value equal to the distance between them
 transformation  (mathematics) a function that changes the position or direction of the axes of a coordinate system
 isometry  a onetoone mapping of one metric space into another metric space that preserves the distances between each pair of points
 operator  (mathematics) a symbol or function representing a mathematical operation
 circular function, trigonometric function  function of an angle expressed as a ratio of the length of the sides of rightangled triangle containing the angle
 threshold function  a function that takes the value 1 if a specified function of the arguments exceeds a given threshold and 0 otherwise
 exponential, exponential function  a function in which an independent variable appears as an exponent
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