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Topic: Numerical integration of polyfit coefficients
Replies: 6   Last Post: Dec 12, 2013 5:50 PM

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Rajin

Posts: 1
Registered: 12/12/13
Numerical integration of polyfit coefficients
Posted: Dec 12, 2013 12:56 PM
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Hello,

I have the coefficients of a polynomial of order 12 given to me using polyfit (it was fitted to model a probability density function). I now need to use the given polynomial f(x), multiply it by x^2, and integrate it over a given boundary.

I have tried using the integral function: integral(fun,xmin,xmax), where:
fun = @(x) poly2sym(f) and f is the coefficients given by polyfit, but this doesn't work.

Any ideas? Apologies if this seems trivial, I have tried everything!

Thanks in advance,
Rajin



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