Rational minimax approximation via adaptive barycentric representations

Computing rational minimax approximations can be very challenging when there are singularities on or near the interval of approximation - precisely the case where rational functions outperform polynomials by a landslide. We show that far more robust algorithms than previously available can be develo...

Ausführliche Beschreibung

Bibliographische Detailangaben
Hauptverfasser: Filip, S, Nakatsukasa, Y, Trefethen, L, Beckermann, B
Format: Journal article
Veröffentlicht: Society for Industrial and Applied Mathematics 2018