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Chebyshev approximation
( go to the article → https://www.johndcook.com/blog/2020/03/11/chebyshev-approximation/ )
In the previous post I mentioned that Remez algorithm computes the best polynomial approximation to a given function f as measured by the maximum norm. That is, for a given n, it finds the polynomial p of order n that minimizes the absolute error || f – p ||∞. The Mathematica function MiniMaxApproximation minimizes the relative […]
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