Barycentric-Remez algorithms for best polynomial approximation in the chebfun system

Variants of the Remez algorithm for best polynomial approximation are presented based on two key features: the use of the barycentric interpolation formula to represent the trial polynomials, and the setting of the whole computation in the chebfun system, where the determination of local and global...

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Bibliographic Details
Main Authors: Pachon, R, Trefethen, L
Format: Report
Published: BIT Numerical Mathematics (Springer) 2008