Math Is Fun Forum

aleclarsen12

Member

Registered: 2008-06-01

Posts: 36

Curve Smoothing

What function can I use to approximate a curve to fit N points of (x,y) coordinates. I would prefer to avoid any matrices of vectors. I also need it to be non-iterative (Is that even a word?).

I would assume there is some kind of Sigma polynomial approximation function... but I don't know and after an hour of Googling I still can't find one.

Thanks for your help!

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bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Curve Smoothing

Hi aleclarsen12;

Since Isaac Newton, humanity prides itself on the fact that we know everything about polynomials. Fits are first done in terms of them first. There are many ways to fit a polynomial to any set of reasonable data. I prefer the methods that utilize simultaneous equations. If you provide me with the points, I will try to fit them. I have much software for the job and a lot of experience.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
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