Fri July 29, 2011 By:

Sir, I m still not clear about the difference between a real valued function and a real function.Can u plz xplain me with Examples*??

Expert Reply
Fri July 29, 2011
There is not much difference between the two functions.
A real valued function has either R or one of its subsets as its range.Further,if its domain is also either R or its subset,it is called real function.
example: Define the function f:R?R for each  xR
as                        y = f(x)=x is a straight line passing throught origin.
Then,it is a real function .
Moreover,it is a real valued function as well because it takes values from R.
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