From dd7a77c34566c450945facbca0c0fb634e4246a5 Mon Sep 17 00:00:00 2001 From: zimoun Date: Thu, 25 Mar 2021 02:05:02 +0100 Subject: gnu: Add julia-richardson. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * gnu/packages/julia-xyz.scm (julia-richardson): New variable. Signed-off-by: Ludovic Courtès --- gnu/packages/julia-xyz.scm | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'gnu') diff --git a/gnu/packages/julia-xyz.scm b/gnu/packages/julia-xyz.scm index 0da2452b89..b56fa5427e 100644 --- a/gnu/packages/julia-xyz.scm +++ b/gnu/packages/julia-xyz.scm @@ -715,6 +715,33 @@ another package is loaded, so that explicit dependencies (and long load times) can be avoided.") (license license:expat))) +(define-public julia-richardson + (package + (name "julia-richardson") + (version "1.4.0") + (source + (origin + (method git-fetch) + (uri (git-reference + (url "https://github.com/JuliaMath/Richardson.jl") + (commit (string-append "v" version)))) + (file-name (git-file-name name version)) + (sha256 + (base32 "06v9ii3d7hh41fsrfklaa8ap55z5s017f888mrd1c18y4fx9i4nx")))) + (build-system julia-build-system) + (home-page "https://juliapackages.com/p/richardson") + (synopsis "Extrapolate function using Richardson method") + (description "This package provides a function extrapolate that +extrapolates a given function @code{f(x)} to @code{f(x0)}, evaluating @code{f} +only at a geometric sequence of points @code{> x0} (or optionally @code{< +x0}). The key algorithm is Richardson extrapolation using a Neville–Aitken +tableau, which adaptively increases the degree of an extrapolation polynomial +until convergence is achieved to a desired tolerance (or convergence stalls +due to e.g. floating-point errors). This allows one to obtain @code{f(x0)} to +high-order accuracy, assuming that @code{f(x0+h)} has a Taylor series or some +other power series in @code{h}.") + (license license:expat))) + (define-public julia-staticarrays (package (name "julia-staticarrays") -- cgit v1.2.3