Package: expint
Type: Package
Title: Exponential Integral and Incomplete Gamma Function
Version: 0.2-1
Date: 2026-01-26
Authors@R: c(person("Vincent", "Goulet", role = c("cre", "aut"),
email = "vincent.goulet@act.ulaval.ca"),
person("Gerard", "Jungman", role = "aut",
email = "jungman@lanl.gov",
comment = "Original GSL code"),
person("Brian", "Gough", role = "aut",
email = "jungman@lanl.gov",
comment = "Original GSL code"),
person("Jeffrey A.", "Ryan", role = "aut",
email = "jeff.a.ryan@gmail.com",
comment = "Package API"),
person("Robert", "Gentleman", role = "aut",
comment = "Parts of the R to C interface"),
person("Ross", "Ihaka", role = "aut",
comment = "Parts of the R to C interface"),
person(given = "R Core Team", role = "aut",
comment = "Parts of the R to C interface"),
person(given = "R Foundation", role = "aut",
comment = "Parts of the R to C interface"))
Description: The exponential integrals E_1(x), E_2(x), E_n(x) and
Ei(x), and the incomplete gamma function G(a, x) defined for
negative values of its first argument. The package also gives
easy access to the underlying C routines through an API; see
the package vignette for details. A test package included in
sub-directory example_API provides an implementation. C
routines derived from the GNU Scientific Library
.
Depends: R (>= 3.3.0)
Suggests: gsl, pracma
License: GPL (>= 2)
URL: https://gitlab.com/vigou3/expint
BugReports: https://gitlab.com/vigou3/expint/-/issues
Encoding: UTF-8
NeedsCompilation: yes
Packaged: 2026-06-24 10:49:13 UTC; root
Author: Vincent Goulet [cre, aut], Gerard Jungman [aut] (Original GSL
code), Brian Gough [aut] (Original GSL code), Jeffrey A. Ryan
[aut] (Package API), Robert Gentleman [aut] (Parts of the R to
C interface), Ross Ihaka [aut] (Parts of the R to C interface),
R Core Team [aut] (Parts of the R to C interface), R Foundation
[aut] (Parts of the R to C interface)
Maintainer: Vincent Goulet
Repository: https://vigou3.r-universe.dev
Date/Publication: 2026-01-27 06:10:36 UTC
RemoteUrl: https://github.com/cran/expint
RemoteRef: HEAD
RemoteSha: c73bcce7388bb125f4bc2f095cbb3f99fd0bdc89