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Topic: Help with creating a function
Replies: 12   Last Post: Nov 19, 2013 3:48 AM

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Peter Percival

Posts: 1,296
Registered: 10/25/10
Re: Help with creating a function
Posted: Nov 18, 2013 1:56 PM
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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)


For a finite number of points like this Lagrange polynomials are useful:
https://en.wikipedia.org/wiki/Lagrange_polynomial.


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