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# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
# See the Spack documentation for more information on packaging.
from spack import *
class RExpint(RPackage):
"""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/>."""
cran = "expint"
version('0.1-6', sha256='c7d13a8e299a91e94622047fe22b0006137e7bf82e34d10871b631fa58115145')
version('0.1-5', sha256='b03d60938cd6cf615aa3a02b1bf73436785eca89eaff56059ee0807b8244718a')
depends_on('r@3.3.0:', type=('build', 'run'))
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