Precalc0001to0005-page3

Precalc0001to0005-page3 - integer nonzero integer It is the...

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(Section 0.1: Sets of Numbers) 0.1.2 Some important sets of numbers are: ± , or Z , the set of integers . • This set consists of 1, 2, 3, etc.; their opposites, ± 1 , ± 2 , ± 3 , etc.; and 0. ± comes from “Zahlen,” the German word for “integer.” ± is in blackboard bold typeface. It is more commonly used than Z . ± , or Q , the set of rational numbers . • This is the set of all numbers that can be written in the form:
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Unformatted text preview: integer nonzero integer It is the set of numbers that can be written as finite (or terminating ) decimals or repeating decimals . Examples include: Fraction form Decimal expansion 1 2 0.5 1 3 0.3 , or 0.3333 823 9900 0.831 , or 0.8313131 7 1 , or 7 7 As demonstrated by the last example, every integer is a rational number . That is, . comes from Quotient....
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This document was uploaded on 12/29/2011.

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