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real number

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English

Noun

Singular
real number

Plural
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real number ({{{1}}})
  1. (mathematics) An element of the set of real numbers; the set of real numbers include the rational numbers and the irrational numbers, but not all complex numbers.
    Every integer is a real number, but not vice versa.
  2. (computing) A floating-point number.
    Even if you pass sqrt an integer, it returns a real number.

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