# rational number

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rational number
See number.

Philosophy dictionary. . 2011.

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• Rational number — In mathematics, a rational number is any number that can be expressed as the quotient or fraction a/b of two integers, with the denominator b not equal to zero. Since b may be equal to 1, every integer is a rational number. The set of all… …   Wikipedia

• rational number — noun an integer or a fraction • Syn: ↑rational • Hypernyms: ↑real number, ↑real • Hyponyms: ↑fraction * * * noun : an integer or the quotient of two integers (as 2/3) * …   Useful english dictionary

• rational number — number which can be represented as a quotient of two whole numbers (Mathematics) …   English contemporary dictionary

• rational number — Math. a number that can be expressed exactly by a ratio of two integers. [1900 05] * * * Any number that can be represented as the quotient of two integers (i.e., the denominator cannot equal zero). The set of rational numbers includes all… …   Universalium

• rational number — noun A real number that can be expressed as the ratio of two integers. Ant: irrational number …   Wiktionary

• rational number — noun Date: 1879 a number that can be expressed as an integer or the quotient of an integer divided by a nonzero integer …   New Collegiate Dictionary

• rational number — ra′tional num′ber n. math. a number that can be expressed exactly by a ratio of two integers • Etymology: 1900–05 …   From formal English to slang

• rational number — /ræʃnəl ˈnʌmbə/ (say rashnuhl numbuh) noun a number which can be expressed as the quotient of two integers, when the denominator is not zero …   Australian English dictionary

• Rational — may refer to: * Rationality, a concept of reason * Rational number, a number that can be expressed as a ratio of two integers * Rational function, a mathematical function which can be written as the ratio of two polynomial functions * Rational… …   Wikipedia

• Number theory — A Lehmer sieve an analog computer once used for finding primes and solving simple diophantine equations. Number theory is a branch of pure mathematics devoted primarily to the study of the integers. Number theorists study prime numbers (the… …   Wikipedia