Date: Nov 18, 2013 2:59 PM
Author: Stuart M Newberger
Subject: Re: Help with creating a function
On Monday, November 18, 2013 1:50:31 AM UTC-8, quasi wrote:

> 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

>

>

>

> f(x) = ((x-1)*(((2*x-1)/abs(2*x-1))+1)/2)+1

>

>

>

> is not pretty but it works.

>

>

>

> quasi

Hello ,I see you have not lost your quasi touch.

However f(x)=max(x,1)=(1/2)(x+1+|x-1|) Regards smn