QuantLib License

QuantLib is
    Copyright (C) 2000, 2001, 2002, 2003 RiskMap srl
    Copyright (C) 2003, 2004, 2005, 2006 StatPro Italia srl
    Copyright (C) 2002, 2003, 2004, 2005 Ferdinando Ametrano

    Copyright (C) 2001, 2002, 2003 Nicolas Di Césaré
    Copyright (C) 2001, 2002, 2003 Sadruddin Rejeb

    Copyright (C) 2002, 2003, 2004 Decillion Pty(Ltd)

    Copyright (C) 2003, 2004 Neil Firth
    Copyright (C) 2003, 2004 Roman Gitlin
    Copyright (C) 2003 Niels Elken Sønderby
    Copyright (C) 2003 Kawanishi Tomoya

    Copyright (C) 2004 FIMAT Group
    Copyright (C) 2004 M-Dimension Consulting Inc.
    Copyright (C) 2004 Mike Parker
    Copyright (C) 2004 Walter Penschke
    Copyright (C) 2004 Gianni Piolanti
    Copyright (C) 2004, 2005, 2006 Klaus Spanderen
    Copyright (C) 2004 Jeff Yu

    Copyright (C) 2005 Toyin Akin
    Copyright (C) 2005 Sercan Atalik
    Copyright (C) 2005, 2006 Theo Boafo
    Copyright (C) 2005 Piter Dias
    Copyright (C) 2005 Gary Kennedy
    Copyright (C) 2005 Joseph Wang
    Copyright (C) 2005 Charles Whitmore

QuantLib includes code taken from Peter Jäckel's book "Monte Carlo
Methods in Finance".

QuantLib includes software developed by the University of Chicago,
as Operator of Argonne National Laboratory.

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 names of the copyright holders nor the names of the QuantLib
    Group and 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 HOLDERS 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.


Comments on Copyright and License

QuantLib is Non-Copylefted Free Software [1] released under the modified BSD License [2] (also know as XFree86-style license).

QuantLib is Open Source [3] because of its license: it is OSI Certified Open Source Software [4]. OSI Certified is a certification mark of the Open Source Initiative [5].

The modified BSD License is GPL compatible as confirmed by the Free Software Foundation [6].

This license has been adopted to allow free use of QuantLib and its source, to make QuantLib flourish as a free-software/open-source project. It allows proprietary extensions to be commercialized.

[1] http://www.gnu.org/philosophy/categories.html#Non-CopyleftedFreeSoftware
[2] http://www.opensource.org/licenses/bsd-license.html
[3] http://www.opensource.org/docs/definition.html
[4] http://www.opensource.org/docs/certification_mark.html
[5] http://www.opensource.org
[6] http://www.gnu.org/philosophy/bsd.html