irrational number

English

Noun

irrational number (plural irrational numbers)

1. (mathematics) Any real number that cannot be expressed as a ratio of two integers.

   The square root of a positive integer is an irrational number unless the positive integer is a perfect square, in which case the square root will also be a positive integer.

Antonyms

• rational number

Translations

real number that is not rational

• Armenian: իռացիոնալ թիվ (iṙacʻional tʻiv)
• Catalan: nombre irracional m
• Chinese:

  Mandarin: 無理數 / 无理数 (zh) (wúlǐshù)

• Czech: iracionální číslo n
• Esperanto: neracionala nombro (eo)
• Finnish: irrationaaliluku (fi)
• French: nombre irrationnel (fr) m
• German: irrationale Zahl (de) f
• Greek: άρρητος αριθμός (el) m (árritos arithmós)
• Hungarian: irracionális szám (hu)
• Icelandic: óræð tala f
• Indonesian: bilangan irasional
• Irish: uimhir éagóimheasta f
• Italian: numero irrazionale (it) m
• Japanese: 無理数 (ja) (むりすう, murisū)
• Kazakh: иррационал сан (irrasional san)
• Korean: 무리수(無理數) (ko) (murisu)
• Latin: numerus irrationalis m
• Macedonian: ирациона́лен број m (iracionálen broj)
• Maori: tau kewha
• Polish: liczba niewymierna (pl) f
• Portuguese: número irracional (pt) m
• Romanian: număr irațional (ro) n
• Russian: иррациона́льное число́ (ru) n (irracionálʹnoje čisló)
• Serbo-Croatian:

  Cyrillic: ирaционaлни брой m

  Roman: iracionalni broj m

• Spanish: número irracional (es) m
• Tagalog: bilang na ditagwayin
• Turkish: irrasyonel sayı (tr)
• Vietnamese: số vô tỉ (vi)

See also

• algebraic number
• transcendental number