quasi
Posts:
12,023
Registered:
7/15/05


Re: Help with creating a function
Posted:
Nov 18, 2013 4:50 AM


Robert Crandal wrote: > >Suppose I have the following XY 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
f(x) = ((x1)*(((2*x1)/abs(2*x1))+1)/2)+1
is not pretty but it works.
quasi

