rational number

noun

Definition of rational number

: a number that can be expressed as an integer or the quotient of an integer divided by a nonzero integer

Examples of rational number in a Sentence

Recent Examples on the Web The polynomial can’t be solved using a rational number — a fraction made by dividing two integers. Quanta Magazine, 21 Apr. 2022 With a rational number—one with an end—the layers of fractions will terminate, or run out, eventually. Popular Mechanics, 21 Feb. 2021 This interminable variety can’t be divided by a rational number. Ephrat Livni, Quartz, 14 Mar. 2020 In other words, an L-function over the set of rational numbers, which is one of the ground-floor functions studied in complex space, ends up being a particular kind of integral complement that can be plotted more easily. Caroline Delbert, Popular Mechanics, 2 Mar. 2020 But rational numbers are actually rare among all numbers. Quanta Magazine, 14 Aug. 2019 But rational numbers are actually rare among all numbers. Quanta Magazine, 14 Aug. 2019 But rational numbers are actually rare among all numbers. Wired, 18 Aug. 2019 The rank is a measurement that tells you something about how many of the solutions to that equation are rational numbers as opposed to irrational numbers. Quanta Magazine, 31 Oct. 2018 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rational number.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of rational number

1873, in the meaning defined above

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Time Traveler for rational number

Time Traveler

The first known use of rational number was in 1873

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Dictionary Entries Near rational number

rationalize

rational number

rational soul

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Cite this Entry

“Rational number.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rational%20number. Accessed 11 Aug. 2022.

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More Definitions for rational number

rational number

noun

Kids Definition of rational number

: a number that can be expressed as a whole number or the quotient of two whole numbers

More from Merriam-Webster on rational number

Britannica.com: Encyclopedia article about rational number

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