Rational nummer

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In mathematics, a rational nummer is ony nummer that can be expressed as the quotient or fraction p/q o twa integers, wi the denominator q nae equal tae zero.[1] Syne q mey be equal to 1, every integer is a rational nummer. The set o aw rational nummers is uisually denotit bi a boldface Q (or blackboard bauld \mathbb{Q}, Unicode ); it wis thus named in 1895 bi Peano efter quoziente, Italian for "quotient".

References[eedit | eedit soorce]

  1. Rosen, Kenneth (2007). Discrete Mathematics and its Applications (6th ed.). New York, NY: McGraw-Hill. pp. 105,158–160. ISBN 978-0-07-288008-3.