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    (Original post by mik1a)
    eg.

    f(x) = 1/x

    Domain of f(x):

    f(x) < 0
    f(x) > 0
    Surely the domain would be

    x < 0
    x > 0

    I thought the domain is the set of numbers which the function 'maps' onto the range...
    i.e. the set of values of x which are mapped onto f
    correct me if I'm wrong
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    (Original post by kimoni)
    Surely the domain would be

    x < 0
    x > 0

    I thought the domain is the set of numbers which the function 'maps' onto the range...
    i.e. the set of values of x which are mapped onto f
    correct me if I'm wrong
    i think that was what mik1a was meant to say...
    alternativley, you could say (for the example above) that 'x' belongs to the set of real numbers (xER), where x =/= 0 (x is not equal to 0)
 
 
 
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Updated: June 19, 2004

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