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Re: [Help-gsl] Reg :: Third Order Polynomial Fit

From: Patrick Alken
Subject: Re: [Help-gsl] Reg :: Third Order Polynomial Fit
Date: Fri, 28 Apr 2017 09:00:47 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0

Here is an example of fitting a quadratic polynomial to a dataset:

You should be able to adapt it to a 3rd order polynomial.

On 04/28/2017 07:00 AM, Sumit Adhikari wrote:
> Hello All,
> I am not a mathematician!
> I have Input vs Output Data for an unknown system. I want to find out the
> coefficient of a third order polynomial which fits the data.
> Anybody please help me where to start using gsl?
> Thanks in advance.

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