Package: expint 0.1-8

expint: Exponential Integral and Incomplete Gamma Function

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/>.

Authors:Vincent Goulet [cre, aut], Gerard Jungman [aut], Brian Gough [aut], Jeffrey A. Ryan [aut], Robert Gentleman [aut], Ross Ihaka [aut], R Core Team [aut], R Foundation [aut]

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expint.pdf |expint.html✨
expint/json (API)
NEWS

# Install 'expint' in R:

install.packages('expint', repos = c('https://vigou3.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://gitlab.com/vigou3/expint

On CRAN:expint-0.1-8(2022-10-28)

Conda-Forge:r-expint-0.1_6(2024-07-03)

6.02 score 1 stars 47 packages 46 scripts 16k downloads 6 exports 0 dependencies

Last updated 2 years agofrom:a653efefd7. Checks:11 OK. Indexed: yes.

Target	Result	Latest binary
Doc / Vignettes	OK	Feb 28 2025
R-4.5-win-x86_64	OK	Feb 28 2025
R-4.5-mac-x86_64	OK	Feb 28 2025
R-4.5-mac-aarch64	OK	Feb 28 2025
R-4.5-linux-x86_64	OK	Feb 28 2025
R-4.4-win-x86_64	OK	Feb 28 2025
R-4.4-mac-x86_64	OK	Feb 28 2025
R-4.4-mac-aarch64	OK	Feb 28 2025
R-4.3-win-x86_64	OK	Feb 28 2025
R-4.3-mac-x86_64	OK	Feb 28 2025
R-4.3-mac-aarch64	OK	Feb 28 2025

Exports:expint expint_E1 expint_E2 expint_Ei expint_En gammainc

Dependencies:

expint user manual

Rendered fromexpint.Rnwusingutils::Sweaveon Feb 28 2025.

Last update: 2022-10-28
Started: 2016-12-20

Citation

To cite expint in publications use:

V. Goulet (2016). expint: Exponential Integral and Incomplete Gamma Function R package URL https://cran.r-project.org/package=expint

We have invested a lot of time and effort in creating expint, please cite both the package and R when using them for data analysis. See also ‘citation()’ for citing R.

Corresponding BibTeX entry:

  @Manual{,
    title = {expint: Exponential Integral and Incomplete Gamma
      Function},
    author = {Vincent Goulet},
    year = {2016},
    note = {R package},
    url = {https://cran.r-project.org/package=expint},
  }

Readme and manuals

Help Manual

Help page	Topics
Exponential Integral and Incomplete Gamma Function	expint-package
Exponential Integral	expint expint_E1 expint_E2 expint_Ei expint_En ExponentialIntegral
Incomplete Gamma Function	gammainc gamma_inc IncompleteGammaFunction