Icelandic edit

 
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Etymology edit

From óræð the feminine of óræður (irrational) + tala (number).

Noun edit

óræð tala f (genitive singular óræðrar tölu, nominative plural óræðar tölur)

  1. (mathematics, arithmetic, not comparable) an irrational number; any real number that cannot be expressed as a ratio of two integers
    π er óræð tala.
    The number π is irrational.

Antonyms edit