expint

Exponential Integral and Incomplete Gamma Function

v0.2-1 · Jan 26, 2026 · GPL (>= 2)

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 <https://www.gnu.org/software/gsl/>.

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CRAN Check Status

14 OK

Show all 14 flavors

Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	OK	37.7s
r-devel-linux-x86_64-debian-gcc	OK	31.2s
r-devel-linux-x86_64-fedora-clang	OK	56.6s
r-devel-linux-x86_64-fedora-gcc	OK	71.3s
r-devel-macos-arm64	OK	21s
r-devel-windows-x86_64	OK	101s
r-oldrel-macos-arm64	OK	56s
r-oldrel-macos-x86_64	OK	137s
r-oldrel-windows-x86_64	OK	85s
r-patched-linux-x86_64	OK	35s
r-release-linux-x86_64	OK	34.1s
r-release-macos-arm64	OK	49s
r-release-macos-x86_64	OK	129s
r-release-windows-x86_64	OK	102s

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (14)

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Dependency Network

Version History

new 0.2-1 Mar 10, 2026

updated 0.2-1 ← 0.2-0 diff Jan 26, 2026

updated 0.2-0 ← 0.1-9 diff Jan 18, 2026

updated 0.1-9 ← 0.1-8 diff Nov 7, 2025

updated 0.1-8 ← 0.1-7 diff Oct 27, 2022

updated 0.1-7 ← 0.1-6 diff Mar 27, 2022

updated 0.1-6 ← 0.1-5 diff Dec 3, 2019

updated 0.1-5 ← 0.1-4 diff Jun 28, 2018

updated 0.1-4 ← 0.1-3 diff May 5, 2017

updated 0.1-3 ← 0.1-2 diff Jan 9, 2017

updated 0.1-1 ← 0.1-0 diff Dec 22, 2016

updated 0.1-2 ← 0.1-1 diff Dec 22, 2016

new 0.1-0 Dec 19, 2016