This article was adapted from an original article by L.D. Kudryavtsev (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098.
A relation in math is a representation of the relationship between two sets of numbers, the domain and range. The relation tells the user the output if a specific input is given. For example, the
A function is called a rational function if it can be written in the form. where and are polynomial functions of and is not the zero function. The domain of is the set of all values of for which the denominator is not zero. However, if and have a non-constant polynomial greatest common divisor , then setting and produces a rational function.
Topology. A three-dimensional model of a figure-eight knot. The figure-eight knot is a prime knot and has an Alexander–Briggs notation of 4 1. In mathematics, topology (from the Greek words τόπος, 'place, location', and λόγος, 'study') is concerned with the properties of a geometric object that are preserved under continuous
With a domain of all real numbers and a range of values greater than or equal to 0, absolute value can be defined as the magnitude, or modulus, of a real number value regardless of sign. It is the distance from 0 on the number line. All of these definitions require the output to be greater than or equal to 0.
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meaning of domain in math
