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authorAndreas Enge <andreas@enge.fr>2013-08-24 10:51:56 +0200
committerAndreas Enge <andreas@enge.fr>2013-08-24 10:51:56 +0200
commit8f8b24512a01097b753bfb3a98c5c6dc94e504e6 (patch)
tree9ae4abe7c192cbd2c9d888d1c6e5c7add9a039dd /gnu/packages/maths.scm
parenteb4b2ab6a87b2d63b6845848d760e594f62939c6 (diff)
downloadguix-8f8b24512a01097b753bfb3a98c5c6dc94e504e6.tar
guix-8f8b24512a01097b753bfb3a98c5c6dc94e504e6.tar.gz
gnu: Add units.
* gnu/packages/maths.scm: New module. * gnu-system.am (GNU_SYSTEM_MODULES): Add module.
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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages maths)
+ #:use-module (gnu packages)
+ #:use-module ((guix licenses)
+ #:renamer (symbol-prefix-proc 'license:))
+ #:use-module (guix packages)
+ #:use-module (guix download)
+ #:use-module (guix build-system gnu))
+
+(define-public units
+ (package
+ (name "units")
+ (version "2.01")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append "mirror://gnu/units/units-" version
+ ".tar.gz"))
+ (sha256 (base32
+ "1wl8kaxgk4l5jgc1f71mx1rwa6ib84krjmzyzn2f987z1g3i52qk"))))
+ (build-system gnu-build-system)
+ (synopsis "Conversion between thousands of scales")
+ (description
+ "GNU Units converts quantities expressed in various systems of
+measurement to their equivalents in other systems of measurement. Like
+many similar programs, it can handle multiplicative scale changes. It can
+also handle nonlinear conversions such as Fahrenheit to Celsius or wire
+gauge, and it can convert from and to sums of units, such as converting
+between meters and feet plus inches.
+
+Beyond simple unit conversions, GNU Units can be used as a general-purpose
+scientific calculator that keeps track of units in its calculations. You
+can form arbitrary complex mathematical expressions of dimensions including
+sums, products, quotients, powers, and even roots of dimensions. Thus you
+can ensure accuracy and dimensional consistency when working with long
+expressions that involve many different units that may combine in complex
+ways.
+
+The units are defined in an external data file. You can use the extensive
+data file that comes with this program, or you can provide your own data
+file to suit your needs. You can also use your own data file to supplement
+the standard data file.")
+ (license license:gpl3+)
+ (home-page "http://www.gnu.org/software/units/")))