irrational number

from WordNet (r) 3.0 (2006)
irrational number
    n 1: a real number that cannot be expressed as a rational number
         [syn: {irrational number}, {irrational}]
    
from The Free On-line Dictionary of Computing (8 July 2008)
irrational number

   <mathematics> A {real number} which is not a {rational
   number}, i.e. it is not the ratio of two {integers}.

   The decimal expansion of an irrational is infinite but does
   not end in an infinite repeating sequence of digits.

   Examples of irrational numbers are {pi}, {e} and the square
   root of two.

   (1995-04-12)
    

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