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expint  

Exponential Integral and Incomplete Gamma Function
View on CRAN: Click here


Download and install expint package within the R console
Install from CRAN:
install.packages("expint")

Install from Github:
library("remotes")
install_github("cran/expint")

Install by package version:
library("remotes")
install_version("expint", "0.2-0")



Attach the package and use:
library("expint")
Maintained by
Vincent Goulet
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2016-12-20
Latest Update: 2022-10-28
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 .
How to cite:
Vincent Goulet (2016). expint: Exponential Integral and Incomplete Gamma Function. R package version 0.2-0, https://cran.r-project.org/web/packages/expint. Accessed 27 Jun. 2026.
Previous versions and publish date:
0.1-0 (2016-12-20 22:54), 0.1-1 (2016-12-23 13:42), 0.1-2 (2016-12-23 17:23), 0.1-3 (2017-01-10 10:17), 0.1-4 (2017-05-06 00:02), 0.1-5 (2018-06-29 18:00), 0.1-6 (2019-12-04 08:50), 0.1-7 (2022-03-28 15:40), 0.1-8 (2022-10-28 13:27), 0.1-9 (2025-11-08 15:20), 0.2-0 (2026-01-19 07:50)
Other packages that cited expint R package
View expint citation profile
Other R packages that expint depends, imports, suggests or enhances
Complete documentation for expint
Functions, R codes and Examples using the expint R package
Some associated functions: expint-package . expint . gammainc . 
Some associated R codes: expint.R . gammainc.R .  Full expint package functions and examples
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