Preview 1
numbers to the counting numbers we end up with the set of integers represented by Z. The set of real numbers R includes positive and negative integers, fractions and irrational numbers. If my cheque account was in credit $30 I could say that the balance was +$30. If it was overdrawn $30 the balance would be -$30. Temperatures are measured in ...
Preview 1
Preview 2
Preview 3
Preview 4
Preview 5
Preview 6