Robert Crandal wrote: > >Suppose I have the following X-Y data set: > >X Y >-- -- >0 1 >1 1 >2 2 >3 3 >. . >. . >N N > >Can this be represented with a math function? > >(Only consider positive integers >= 0)
It's already a function since for each x in the domain, there is a unique y.
Presumably you want a "formula".
The function f defined on the set of nonnegative integers by the formula