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minimaxApprox: Minimax Approximation of Functions by Polynomials and Rational Functions

Implements minimax approximation of functions via the Remez (1962) algorithm for polynomials and the Cody-Fraser-Hart (1968) <doi:10.1007/BF02162506> algorithm for rational functions, as well as their barycentric formulations: the Pachón-Trefethen (2009) <doi:10.1007/s10543-009-0240-1> algorithm for polynomials and the Filip-Nakatsukasa-Trefethen-Beckermann (2018) <doi:10.1137/17M1132409> algorithm for rational functions, which provide improved numerical stability at higher degrees and on wider intervals.

Version: 0.6.0
Imports: stats, graphics
Suggests: tinytest, covr, knitr, rmarkdown
Published: 2026-07-17
DOI: 10.32614/CRAN.package.minimaxApprox
Author: Avraham Adler ORCID iD [aut, cre, cph]
Maintainer: Avraham Adler <Avraham.Adler at gmail.com>
BugReports: https://github.com/aadler/minimaxApprox/issues
License: MPL-2.0
URL: https://github.com/aadler/minimaxApprox
NeedsCompilation: yes
Citation: minimaxApprox citation info
Materials: README, NEWS
In views: NumericalMathematics
CRAN checks: minimaxApprox results

Documentation:

Reference manual: minimaxApprox.html , minimaxApprox.pdf
Vignettes: Using minimaxApprox (source, R code)

Downloads:

Package source: minimaxApprox_0.6.0.tar.gz
Windows binaries: r-devel: minimaxApprox_0.6.0.zip, r-release: minimaxApprox_0.6.0.zip, r-oldrel: minimaxApprox_0.6.0.zip
macOS binaries: r-release (arm64): minimaxApprox_0.6.0.tgz, r-oldrel (arm64): minimaxApprox_0.6.0.tgz, r-release (x86_64): minimaxApprox_0.6.0.tgz, r-oldrel (x86_64): minimaxApprox_0.6.0.tgz
Old sources: minimaxApprox archive

Linking:

Please use the canonical form https://CRAN.R-project.org/package=minimaxApprox to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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