Natural Numbers (N), set of counting numbers starting at 1 eg. {1,2,3, ...}, Real Numbers (R), Set containing all the rational and irrational numbers, Irrational Numbers (Q'), Cannot be expressed as a fraction of integers. They are non-terminating decimals with no repetition (eg. ∏ = 3.14159 ...), Integers (Z), Natural numbers, plus 0 and their additive inverses (negatives). eg {1/2, -1/2, ...}, Rational Numbers (Q), Numbers in the form p/q where p & q are integers and q≠0, Whole Numbers (W), The set of Natural numbers plus 0. eg {0,1,2,3, ...}

Number Systems

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