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Subject: Re: [boost] [math] Chebyshev polynomial
From: Bjorn Reese (breese_at_[hidden])
Date: 2017-05-20 10:14:24

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In reply to: Bjorn Reese: "[boost] [math] Chebyshev polynomial"

On 05/15/2017 02:29 PM, John Maddock via Boost wrote:

> However, the recurrence relation is trivial, likewise evaluation of an
> arbitrary Tn(x) in terms of trig functions? Even the roots have simple
> formulae.

They are indeed trivial, and I already have my own implementation.

I just thought it might be nice to have in Boost.Math as we already
have support for other polynomials.

> What did you want to do?

I am using it for function approximation:

https://en.wikipedia.org/wiki/Approximation_theory#Chebyshev_approximation

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