Package: itp
Type: Package
Title: The Interpolate, Truncate, Project (ITP) Root-Finding Algorithm
Version: 1.2.2
Date: 2026-01-09
Authors@R: person(c("Paul", "J."), "Northrop", email = "p.northrop@ucl.ac.uk",
  role = c("aut", "cre", "cph"))
Description: Implements the Interpolate, Truncate, Project (ITP)
        root-finding algorithm developed by Oliveira and Takahashi
        (2021) <doi:10.1145/3423597>. The user provides the function,
        from the real numbers to the real numbers, and an interval with
        the property that the values of the function at its endpoints
        have different signs. If the function is continuous over this
        interval then the ITP method estimates the value at which the
        function is equal to zero. If the function is discontinuous
        then a point of discontinuity at which the function changes
        sign may be found. The function can be supplied using either an
        R function or an external pointer to a C++ function. Tuning
        parameters of the ITP algorithm can be set by the user. Default
        values are set based on arguments in Oliveira and Takahashi
        (2021).
License: GPL (>= 2)
Encoding: UTF-8
RoxygenNote: 7.3.3
Imports: Rcpp (>= 1.0.8)
LinkingTo: Rcpp
Suggests: knitr, rmarkdown, stats, testthat (>= 3.0.0)
VignetteBuilder: knitr
URL: https://paulnorthrop.github.io/itp/,
        https://github.com/paulnorthrop/itp
BugReports: https://github.com/paulnorthrop/itp/issues
Config/testthat/edition: 3
Repository: https://paulnorthrop.r-universe.dev
Date/Publication: 2026-01-24 19:47:29 UTC
RemoteUrl: https://github.com/paulnorthrop/itp
RemoteRef: HEAD
RemoteSha: 06102d9cca48b1ad22ed94e46f567328fc0a5eac
NeedsCompilation: yes
Packaged: 2026-06-24 02:46:41 UTC; root
Author: Paul J. Northrop [aut, cre, cph]
Maintainer: Paul J. Northrop <p.northrop@ucl.ac.uk>