real-number

real number

[ree-uhl, reel]
noun Mathematics.
a rational number or the limit of a sequence of rational numbers, as opposed to a complex number.
Also called real.


Origin:
1905–10

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World English Dictionary
real number
 
n
See number a number expressible as a limit of rational numbers

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
real number   (rē'əl)  Pronunciation Key 
A number that can be written as a terminating or nonterminating decimal; a rational or irrational number. The numbers 2, -12.5, 3/7 , and pi (π) are all real numbers.
The American Heritage® Science Dictionary
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