This file is about the copyright on Sage and all included components.
Sage is a compilation both of original Python, C, C++, and Cython code,
and of existing free mathematics-related software. All standard
components of sage (those included in sage-*.tar) are licensed under a
free open source license as defined at http://www.opensource.org/.
The whole Sage software distribution is licensed under the General
Public License, version 3 (no other versions!).
All Sage documentation is licensed under Creative Commons 3.0 BY-SA
License.
Some of the code available in *optional* Sage packages (not included
in sage-*.tar) are licensed under more restrictive conditions.
* ORIGINAL SAGE LIBRARY CODE:
All original Sage code is distributed under the terms of the
GNU General Public License, either version 2 of the License, or
(at your option) any later version.
This code 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.
The full text of the GPL is available below in this file. Details of
the licenses of the components of Sage are included below as well.
* LICENSES OF INCLUDED SOFTWARE:
SOFTWARE LICENSE
-----------------------------------------------------------------------
boehm_gc MIT-like license (see below)
backports_ssl_match_hostname Python License
boost_cropped Boost Software License (see below)
cddlib GPLv2+
certifi ISC
cliquer GPLv2+
conway_polynomials None (database)
cvxopt GPLv2+
cython Apache, version 2.0
dateutil Simplified BSD
docutils Modified BSD
ecl LGPLv2+
eclib GPLv2+
ecm GPLv3+
elliptic_curves None (database)
extcode GPLv2+
fflas_ffpack LGPLv2.1+
flint GPLv2+
fplll LGPLv2.1+
freetype FreeType License (similar to BSD; see below)
gap GPLv2+
gcc GPLv3+
gd Custom (BSD-ish)
genus2reduction GPLv2+
gfan GPLv2 or GPLv3
gf2x GPLv2+
givaro CeCILL-B (BSD-ish)
glpk GPLv3+
graphs None (database)
gsl GPLv3+
iconv GPLv3+
iml COPYING is GPLv2, source files state modified BSD
ipython Modified BSD
jinja2 Modified BSD
jmol LGPLv2.1+
jsonschema MIT License
lcalc GPLv2+
libgap GPLv3+
libpng Custom (modified BSD)
linbox LGPLv2.1+
lrcalc GPLv2+
m4ri GPLv2+
m4rie GPLv2+
markupsafe Simplified BSD
mathjax Apache License 2.0
matplotlib Matplotlib License (BSD compatible, see below)
maxima See below
mistune Modified BSD
mpc LGPLv3+
mpfi COPYING is GPLv2, source files state LGPLv2.1+
mpfr LGPLv3+
mpmath Modified BSD
networkx Modified BSD
ntl GPLv2+
numpy Modified BSD
openblas Modified BSD
palp GPLv3
pari GPLv2+
pexpect Python License
pillow Apache License 2.0
pip MIT License
pkgconfig MIT License
planarity Modified BSD
polybori GPLv2+
polytopes_db None (database)
ppl GPLv3+
pygments Modified BSD
pynac GPLv2+
pyparsing MIT License
python Python License (see below)
R GPLv2+
readline GPLv3+
rpy GPLv2+
rubiks/dietz GPL, any version
rubiks/dik MIT License
rubiks/reid GPLv2+
sage GPLv2+
sage_root GPLv2+
sage_scripts GPLv2+
sagenb GPLv3
sagetex GPLv2+ (CC BY-SA 3.0 for included documentation)
scipy Modified BSD
setuptools Python License
singular GPLv2 or GPLv3 (see below)
six MIT License
sphinx Modified BSD
sqlite Public Domain (see below)
symmetrica MIT-like License (see below)
sympow Modified BSD
sympy Modified BSD
tachyon Modified BSD
threejs MIT License
tornado Apache License
CONTACT INFO:
William Stein; [email protected];
http://www.sagemath.org
=========================================================================
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HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
================================================================================
boehm_gc:
Copyright (c) 1988, 1989 Hans-J. Boehm, Alan J. Demers
Copyright (c) 1991-1996 by Xerox Corporation. All rights reserved.
Copyright (c) 1996-1999 by Silicon Graphics. All rights reserved.
Copyright (c) 1999-2011 by Hewlett-Packard Development Company.
The file linux_threads.c is also
Copyright (c) 1998 by Fergus Henderson. All rights reserved.
The files Makefile.am, and configure.in are
Copyright (c) 2001 by Red Hat Inc. All rights reserved.
Several files supporting GNU-style builds are copyrighted by the Free
Software Foundation, and carry a different license from that given
below. The files included in the libatomic_ops distribution (included
here) use either the license below, or a similar MIT-style license,
or, for some files not actually used by the garbage-collector library, the
GPL.
THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
Permission is hereby granted to use or copy this program
for any purpose, provided the above notices are retained on all copies.
Permission to modify the code and to distribute modified code is granted,
provided the above notices are retained, and a notice that the code was
modified is included with the above copyright notice.
A few of the files needed to use the GNU-style build procedure come with
slightly different licenses, though they are all similar in spirit. A few
are GPL'ed, but with an exception that should cover all uses in the
collector. (If you are concerned about such things, I recommend you look
at the notice in config.guess or ltmain.sh.)
The atomic_ops library contains some code that is covered by the GNU General
Public License, but is not needed by, nor linked into the collector library.
It is included here only because the atomic_ops distribution is, for
simplicity, included in its entirety.
================================================================================
boost_cropped:
(http://www.boost.org/LICENSE_1_0.txt)
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
================================================================================
bzip2:
(http://www.bzip.org/)
This program, "bzip2", the associated library "libbzip2", and all
documentation, are copyright (C) 1996-2010 Julian R Seward. All
rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
================================================================================
cython:
(http://www.cython.org/)
The original Pyrex code as of 2006-04 is licensed under the following
license: "Copyright stuff: Pyrex is free of restrictions. You may use,
redistribute, modify and distribute modified versions."
------------------
Cython, which derives from Pyrex, is licensed under the Apache 2.0
Software License. More precisely, all modifications and new code
made to go from Pyrex to Cython are so licensed.
See LICENSE.txt in the cython spkg for more details.
================================================================================
docutils:
:Author: David Goodger
:Contact: [email protected]
:Date: $Date: 2009-10-09 09:17:59 +0200 (Fre, 09 Okt 2009) $
:Web site: http://docutils.sourceforge.net/
Most of the files included in this project have been placed in the
public domain, and therefore have no license requirements and no
restrictions on copying or usage. See COPYING.txt (in the docutils
spkg) for more details.
================================================================================
freetype:
(http://www.freetype.org/license.html)
FreeType comes with two licenses from which you can choose the one which fits
your needs best.
* The FreeType License (FTL) is the most commonly used one. It is a BSD-style
license with a credit clause and thus compatible with the GNU Public License
(GPL) version 3, but not with the GPL version 2.
* The GNU General Public License (GPL), version 2. Use it for all projects
which use the GPLv2 also, or which need a license compatible to the GPLv2.
================================================================================
gd -- "The web site programmer's dynamic graphics generation tool":
(http://www.boutell.com/gd/)
Permission has been granted to copy, distribute and modify gd in
any context without fee, including a commercial application,
provided that this notice is present in user-accessible supporting
documentation.
This does not affect your ownership of the derived work itself, and
the intent is to assure proper credit for the authors of gd, not to
interfere with your productive use of gd. If you have questions,
ask. "Derived works" includes all programs that utilize the
library. Credit must be given in user-accessible documentation.
This software is provided "AS IS." The copyright holders disclaim
all warranties, either express or implied, including but not
limited to implied warranties of merchantability and fitness for a
particular purpose, with respect to this code and accompanying
documentation.
================================================================================
genus2reduction:
(http://www.math.u-bordeaux.fr/~liu/G2R/)
Copyright Qing LIU. See PARI for the license terms.
================================================================================
gfan:
From: Anders Nedergaard Jensen <[email protected]>
To: Jeroen Demeyer <[email protected]>
Subject: Re: gfan licensing under GPLv2+
Dear Jeroen Demeyer,
Yes, I am willing to change the distribution terms to
GPL, "version 2, or any later version".
Do I need to make an updated release, or will this email suffice?
Best regards,
Anders
================================================================================
ipython:
(http://ipython.org/ipython-doc/stable/about/license_and_copyright.html)
Copyright (c) 2011, IPython Development Team
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
Neither the name of the IPython Development Team nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
================================================================================
matplotlib:
(from http://matplotlib.sourceforge.net/users/license.html)
Matplotlib only uses BSD compatible code, and its license is based on
the PSF license. See the Open Source Initiative licenses page for
details on individual licenses. Non-BSD compatible licenses (eg LGPL)
are acceptable in matplotlib toolkits. For a discussion of the
motivations behind the licencing choice, see Licenses.
================================================================================
maxima:
(from http://maxima.sourceforge.net/authorization-letter.html)
Dear Dr. Schelter:
RE: DOE-MACSYMA
This is in reply to your request of September 17, 1998, requesting a license
to prepare and distribute derivative works from the copy of DOE-MACSYMA
software obtained from the NESC. The ESTSC assumed the DOE Centralized
Software Management Facility responsibility in January 1991. The following
statement of the Department of Energy's (DOE) position is provided as the
ESTSC response to your request.
?It has been the DOE practice (where the case permits) to encourage private
companies or individuals to modify, enhance, or make derivative works of
unrestricted software sponsored or supported by DOE for the purpose of
commercialization or distribution of such modifications, enhancements, and/or
derivative works. Accordingly, William F. Schelter may consider he has a
nonexclusive, world-wide, royalty-free license to make derivative works
(modifications or enhancements) from the copy of DOE-MACSYMA obtained from
NESC, and to copy, license and/or distribute those derivative works for use,
modification and enhancement, and further sublicensing and distribution.
Distribution of such derivative works is subject to the U.S. Export
Administration Regulations (Title 15 CFR 768-799), which implements the Export
Administration Act of 1979, as amended, and/or the International Traffic in
Arms Regulation, of 12-6-84, (Title 22 CFR 121-130), which implements the Arms
Export Control Act (22 U.S.C. 2728) and may require license for export.?
We have enclosed a current list of the countries which are considered
sensitive and require approval through DOE Headquarters. Should you have
requests from such countries, please contact the ESTSC for approval. If you
intend to make your derivative work(s) available under the GPL (gnu public
license) via the Internet, the previous paragraph should be included in the
GPL and should accompany other modifications, enhancements or derivative works
of your program.
The derivative versions of DOE-MACSYMA which you develop for commercialization
purposes may be of interest to DOE organizations which ESTSC supports. We
would appreciate getting copies of such derivatives and would adhere to the
dissemination limitation markings which you define.
If you have questions or comments, please call me at 423/576-2606.
================================================================================
NTL:
(http://www.shoup.net/ntl/)
A Library for Doing Number Theory
Copyright (C) 1996-2005 Victor Shoup
The most recent version of NTL is available at http://www.shoup.net
This program 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 2
of the License, or (at your option) any later version.
This program 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.
This entire copyright notice should be placed in an appropriately
conspicuous place accompanying all distributions of software that
make use of NTL.
The above terms apply to all of the software modules distributed with NTL,
i.e., all source files in either the ntl-xxx.tar.gz or WinNTL-xxx.zip
distributions. In general, the individual files do not contain
copyright notices.
Note that the quad_float package is derived from the doubledouble package,
originally developed by Keith Briggs, and also licensed unger the GNU GPL.
The files quad_float.c and quad_float.h contain more detailed copyright
notices.
Note that the traditional long integer package used by NTL, lip.c, is derived
from---and represents an extensive modification of---
a package originally developed and copyrighted by Arjen Lenstra,
who has agreed to renounce any copyright claims on the particular
version of the long integer package appearing in NTL, so that the
this package now is covered by the GNU GPL as well.
Note that the alternative long integer package used by NTL is GMP,
which is written by Torbjorn Granlund <[email protected]>.
GMP is licensed under the terms of the GNU Lesser General Public License.
Note that NTL makes use of the RSA Data Security, Inc. MD5 Message
Digest Algorithm.
RSA MD5 Message Digest Algorithm License:
Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
rights reserved.
License to copy and use this software is granted provided that it
is identified as the "RSA Data Security, Inc. MD5 Message-Digest
Algorithm" in all material mentioning or referencing this software
or this function.
License is also granted to make and use derivative works provided
that such works are identified as "derived from the RSA Data
Security, Inc. MD5 Message-Digest Algorithm" in all material
mentioning or referencing the derived work.
RSA Data Security, Inc. makes no representations concerning either
the merchantability of this software or the suitability of this
software for any particular purpose. It is provided "as is"
without express or implied warranty of any kind.
These notices must be retained in any copies of any part of this
documentation and/or software.
================================================================================
pil:
The Python Imaging Library is
Copyright (c) 1997-2006 by Secret Labs AB
Copyright (c) 1995-2006 by Fredrik Lundh
By obtaining, using, and/or copying this software and/or its
associated documentation, you agree that you have read, understood,
and will comply with the following terms and conditions:
Permission to use, copy, modify, and distribute this software and its
associated documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appears in all
copies, and that both that copyright notice and this permission notice
appear in supporting documentation, and that the name of Secret Labs
AB or the author not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR
ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
================================================================================
python:
PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
--------------------------------------------
1. This LICENSE AGREEMENT is between the Python Software Foundation
("PSF"), and the Individual or Organization ("Licensee") accessing and
otherwise using this software ("Python") in source or binary form and
its associated documentation.
2. Subject to the terms and conditions of this License Agreement, PSF
hereby grants Licensee a nonexclusive, royalty-free, world-wide
license to reproduce, analyze, test, perform and/or display publicly,
prepare derivative works, distribute, and otherwise use Python
alone or in any derivative version, provided, however, that PSF's
License Agreement and PSF's notice of copyright, i.e., "Copyright (c)
2001, 2002, 2003, 2004, 2005, 2006 Python Software Foundation; All Rights
Reserved" are retained in Python alone or in any derivative version
prepared by Licensee.
3. In the event Licensee prepares a derivative work that is based on
or incorporates Python or any part thereof, and wants to make
the derivative work available to others as provided herein, then
Licensee hereby agrees to include in any such work a brief summary of
the changes made to Python.
4. PSF is making Python available to Licensee on an "AS IS"
basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
INFRINGE ANY THIRD PARTY RIGHTS.
5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
6. This License Agreement will automatically terminate upon a material
breach of its terms and conditions.
7. Nothing in this License Agreement shall be deemed to create any
relationship of agency, partnership, or joint venture between PSF and
Licensee. This License Agreement does not grant permission to use PSF
trademarks or trade name in a trademark sense to endorse or promote
products or services of Licensee, or any third party.
8. By copying, installing or otherwise using Python, Licensee
agrees to be bound by the terms and conditions of this License
Agreement.
================================================================================
singular:
SINGULAR version 3-1-5
University of Kaiserslautern
Department of Mathematics and Centre for Computer Algebra
Authors: G.-M. Greuel, G. Pfister, H. Schoenemann
Copyright (C) 1986-2012
*NOTICE*
This program 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 ( version 2 or version 3 of the License ).
Some single files have a copyright given within the file:
Singular/ndbm.* (BSD), kernel/htmlhelp.h (LGPL 2.1+)
The following software used with SINGULAR have their own copyright: the
omalloc library, the readline library, the Gnu Multiple Precision
Library (GMP), NTL: A Library for doing Number Theory (NTL), the Multi
Protocol library (MP), the Singular-Factory library, the
Singular-libfac library, surfex, and, for the Windows distributions the
Cygwin DLL and the Cygwin tools (Cygwin), and the XEmacs editor
(XEmacs).
Their copyrights and licenses can be found in the accompanying files
COPYING which are distributed along with these packages. (Since
version 3-0-3 of SINGULAR, all parts have GPL or LGPL as (one of) their
licences.)
This program 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.
================================================================================
sqlite:
SQLite Copyright
SQLite is in the Public Domain
All of the deliverable code in SQLite has been dedicated to the public
domain by the authors. All code authors, and representatives of the
companies they work for, have signed affidavits dedicating their
contributions to the public domain and originals of those signed
affidavits are stored in a firesafe at the main offices of
Hwaci. Anyone is free to copy, modify, publish, use, compile, sell, or
distribute the original SQLite code, either in source code form or as
a compiled binary, for any purpose, commercial or non-commercial, and
by any means.
The previous paragraph applies to the deliverable code in SQLite -
those parts of the SQLite library that you actually bundle and ship
with a larger application. Portions of the documentation and some code
used as part of the build process might fall under other licenses. The
details here are unclear. We do not worry about the licensing of the
documentation and build code so much because none of these things are
part of the core deliverable SQLite library.
All of the deliverable code in SQLite has been written from
scratch. No code has been taken from other projects or from the open
internet. Every line of code can be traced back to its original
author, and all of those authors have public domain dedications on
file. So the SQLite code base is clean and is uncontaminated with
licensed code from other projects.
================================================================================
symmetrica:
Copyright (c) 1987-2010 , symmetrica (at) symmetrica.de
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
================================================================================
sympow:
(http://www.maths.bris.ac.uk/~mamjw/)
copyright Mark Watkins.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistribution of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistribution in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* If redistribution is done as a part of a compilation that has a more
restrictive license (such as the GPL), then the fact that SYMPOW has
a less restrictive license must be made clear to the recipient.
For example, a line like (include bracketed text if SYMPOW is modified):
"This compilation includes [a modification of] SYMPOW whose [original]
code has a less-restrictive license than the entire compilation."
should appear in a suitable place in the COPYING and/or LICENSE file.
[followed by the BSD disclaimer]
================================================================================
