Question
Thu May 29, 2008 By:

what are real numbers?

Expert Reply
Thu May 29, 2008

the real numbers may be described informally as numbers that can be given by an infinite decimal representation, such as 2.4871773339.... The real numbers include rational numbers, such as 42 and −23/129, and irrational numbers, such as π and the square root of 2, and can be represented as points along an infinitely long number line.

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