Changes in version 0.2-1 (2026-01-27)                  

    o   The package vignette now contains an appendix providing more
	details on the fix introduced in version 0.2-0 for the
	computation of the incomplete gamma function for small negative
	values of a.

                 Changes in version 0.2-0 (2026-01-19)                  

BUG FIXES

    o   gammainc now handles values of a in (-0.5, 0) correctly by
	using the standard recursion, relying on the accuracy of pgamma
	for small values of a; fixes issue #2.

                 Changes in version 0.1-9 (2025-11-08)                  

BUG FIXES

    o   Replacement of a few API entry points for C API compliance
	introduced in R 4.5.0.

                 Changes in version 0.1-8 (2022-10-28)                  

NEW FEATURE

    o   Unit tests for the incomplete gamma function based on the
	definition, and for the exponential integrals based on a table
	of Abramowitz and Stegun.

BUG FIXES

    o   Include prototypes for all C level functions to please
	-Wstrict-prototypes.

                 Changes in version 0.1-7 (2022-03-28)                  

BUG FIXES

    o   Replace deprecated (as of R 4.2.0) macro DOUBLE_EPS by
	DBL_EPSILON in C code.

    o   Remove the unnecessary LazyData entry in the DESCRIPTION file.

                 Changes in version 0.1-6 (2019-12-04)                  

    o   Fixed the example API and the documentation in the vignette.
	The previous implementation yielded duplicated symbols with
	option -fno-common that will be the default in gcc starting
	with version 10.0.x. Thanks to Joshua Ulrich
	<mailto:josh.m.ulrich@gmail.com>, maintainer of xts and TTR for
	proposing the fix.

                 Changes in version 0.1-5 (2018-06-29)                  

    o   Minor documentation and comments updates.

                 Changes in version 0.1-4 (2017-05-05)                  

BUG FIX

    o   Usage of R_useDynamicSymbols to preclude compilation NOTEs,
	better registration of native routines and reduced symbol
	visibility.

    o   Vignette no longer uses LaTeX package framed as it was not
	found on OS X in CRAN builds.

                 Changes in version 0.1-3 (2017-01-10)                  

BUG FIX

    o   Fixed wrong values for expint_E1(x, scale = TRUE) for x in (-4,
	-1] or x in (0, 1]. Thanks to Vincent Dorie
	<mailto:vjd4@nyu.edu> for the catch and report.

                 Changes in version 0.1-2 (2016-12-23)                  

    o   Yet more authors (actually copyright holders) added to the list
	of authors.

                 Changes in version 0.1-1 (2016-12-23)                  

BUG FIX

    o   Fixed improper use of macro ISNAN (and ISNA) that caused
	compilation to fail on Linux and Solaris.

OTHER CHANGES

    o   Original author of GSL code for expint and gamma_inc (G.
	Jungman) added as an author of the package.

    o   Improved (read: more explicit) copyright notices to GSL, R Core
	Team and R Foundation where appropriate.

                 Changes in version 0.1-0 (2016-12-20)                  

    o   Initial release. The package provides the R functions to
	compute the exponential integrals E_1(x), E_2(x), E_n(x) and
	Ei(x), and the incomplete gamma function G(a, x).  The package
	also provides a C API to access the actual workhorses
	expint_E1, expint_E2, expint_En and gamma_inc. Sub-directory
	example_API of the package installation directory contains a
	complete test package implementing API usage.