Approximating the \(p\)th root by composite rational functions

DOI10.1016/j.jat.2021.105577zbMath1471.41006arXiv1906.11326OpenAlexW3139073236MaRDI QIDQ2029808

Evan S. Gawlik, Yuji Nakatsukasa

Publication date: 4 June 2021

Published in: Journal of Approximation Theory (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1906.11326

zbMATH Keywords

minimaxrational approximationsquare rootsign functionfunction composition\(p\)th rootsector functionzolotarev

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Approximation by rational functions (41A20) Rate of convergence, degree of approximation (41A25) Algorithms for approximation of functions (65D15)

Related Items (1)

Rational minimax iterations for computing the matrix \(p\)th root

Uses Software

• mftoolbox

Cites Work

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