GeoGebra - Dynamic Mathematics for Everyone
http://www.geogebra.org/

LICENSE
  You are free to copy, distribute and transmit GeoGebra free of charge
  for non-commercial purposes (see conditions and details below).

PROJECT DIRECTOR
  * Markus Hohenwarter (Austria & USA 2001-)

LEAD DEVELOPER
  * Michael Borcherds (UK 2007-)

DEVELOPERS
  * Gabor Ancsin (Hungary 2009-)
  * Balazs Bencze (Romania 2012-)
  * Mathieu Blossier (France 2008-)
  * Judit Elias (Hungary 2009-)
  * Krisztina Frank (Austria 2016-)
  * Laszlo Gal (Hungary 2013-)
  * Alicia Hofstaetter (Austria 2016-)
  * Fabian Jordan (Austria 2016-)
  * Barna Karacsony (Romania 2017-)
  * Zbynek Konecny (Czech Republic 2010-)
  * Zoltan Kovacs (Austria 2010-)
  * Wolfgang Kuellinger (Austria 2014-)
  * Elena Lettner (Austria 2016-)
  * Stefan Lizelfelner (Austria 2013-)
  * Bernard Parisse (France 2013-)
  * Csilla Solyom-Gecse (Austria 2015-)
  * Melanie Tomaschko (Austria 2011-)

CONTRIBUTORS
  * Shamshad Alam (GSoC 2015)
  * Lucas Binter (Austria 2011-12)
  * Philipp Birklbauer (Austria 2010-13)
  * Giuliano Bellucci (Italy 2013-)
  * Stefanie Bogner (Austria 2013-16)
  * Loic Le Coq (France 2006-11)
  * Arnaud Delobelle (UK 2011-)
  * Calixte Denizet (France 2010-15)
  * Damien Desfontaines (France 2012)
  * Darko Drakulic (Bosnia and Herzegovina 2011-)
  * Martin Ennemoser (Austria 2011-12)
  * Andre Eriksson (Sweden 2010-12)
  * Vincent Everaert (France 2013-)
  * Arpad Fekete (Hungary 2010-15)
  * Victor Franco (Spain 2007)
  * Claudia Gollner (Austria 2011)
  * Alexander Hartl (Austria 2011-)
  * Guy Hed (Israel 2008-11)
  * Ralf Hemmecke (Germany 2011)
  * Ann-Christin Holzinger (Austria 2015)
  * Henrietta Hoszu (Romania 2016)
  * Rana Issa (Austria 2011-12)
  * Hunor Karaman (Romania 2018-)
  * Ted Kosan (USA 2008-09)
  * Thomas Krismayer (Austria 2012-16)
  * Yi-Chun (Jacky) Kuo (GSoC 2015)
  * Dominik Kreil (Austria 2011-12)
  * Yves Kreis (Luxembourg 2005-10)
  * Corinna Kroehn (Austria 2011-12)
  * Cong Liu (USA 2007-09)
  * Julian Lettner (Austria 2011)
  * Thilina Madumal (GSoC 2015)
  * Matthias Meisinger (Austria 2011-13)
  * Joan Carles Naranjo (Spain 2007)
  * Georgios Ouzounis (GSoC 2015)
  * Eloi Puertas (Spain 2007)
  * Peter Rathgeb (Austria 2015-16)
  * Johannes Renner (Austria 2011-12)
  * Sergio Arbeo Rodriguez (Spain 2010-12)
  * Christian Schott (Germany 2011-13)
  * Neel Shah (India 2012)
  * Florian Sonner (Germany 2008-12)
  * Christoph Stadlbauer (Austria 2011-16)
  * George Sturr (USA 2009-15)
  * Don Sun (USA 2011)
  * Kai Chung Tam (USA 2011-12)
  * Sara Arjona Tellez (Spain 2011)
  * Hans-Petter Ulven (Norway 2008-12)
  * Thomas Unterthiner (Austria 2010-11)
  * Amy Varkey (USA 2007-09)
  * Philipp Weissenbacher (Austria 2007)
  * Simon Weitzhofer (Austria 2011-13)
  * Quan Yuan (USA 2007-09)
  * Andy Zhu (USA 2010-11)

TRANSLATORS
  * Afrikaans: Rika Grobler (South Africa)
  * Albanian: Pellumb Klogjeri (Albania), Teuta Iljazi (Macedonia)
  * Arabic: Brahim Boulakbech, Haboubi Abdessalem,  Boulifa Mehdi (Tunisia),
      Maha Ahmed (Egypt), Kamal Dkhissi (Morocco), Rana Issa (Spain)
  * Armenian: Gagik Aghekyan (Armenia)
  * Basque: Gonzalo Elcano Vizcay, Aitzol Lasa, Ander Mariezkurrena,
      Asier Ruiz Guinea (Spain)
  * Bosnian: Maja Hrbat, Jelena Arnaut, Mirko Capara,
      Vesna Miletic (Bosnia and Herzegovina)
  * Bulgarian: Nadezhda Aplakova, Nadezhda Konstantinova, Galina Lyutskanova,
      Hristo Stoyanov, Dessislava Dimkova, Hristov, Magdalena Petkova (Bulgaria)
  * Catalan: Jaume Bartroli, Pep Bujosa, Josep Lluis Canadilla,
      Carlos Gimenez, Antoni Goma, Jorge Sanchez,
      Roser Sebastian, David Obrador Sala (Spain)
  * Chinese (Simplified): Lee Ying, Chen Xing, Tom King, Ran Tao, Oldnew (China)
  * Chinese (Traditional): Fu-Kwun Hwang, Chen-Hui Lin, Pegasus Roe,
      Joe Chen (Taiwan)
  * Croatian: Sime Suljic, Ela Rac-Marinic-Kragic, Josip Klicinovic,
      Zeljko Vrabec, Damir Belavic (Croatia)
  * Czech: Zuzana Bouchalova, Michaela Norulakova, Marketa Tomanova,
      Marie Pokorna, Jiri Srubar, Roman Hasek (Czech Republic)
  * Danish: Steen Grode, Martin Thun Klausen (Denmark)
  * Dutch: Ivan De Winne, Chris Cambre, Jozef Van Remoortere,
      Roger Van Nieuwenhuyze, Pedro Tytgat, Riggy Van de Wiele,
      Beatrijs Versichel (Belgium),
      Anton Geijer, Toon Rekkers (The Netherlands)
  * English: Markus Hohenwarter, Judith Hohenwarter (Austria),
      Yves Kreis (Luxembourg), Michael Borcherds (UK)
  * Estonian: Jane Albre-Andersen (Estonia)
  * Filipino: Guillermo Bautista, Jr., Jose Abelardo Torio,
      Erlina Ronda (The Philippines)
  * Finnish: Juha Leino, Mikko Rahikka, Erkki Luoma-aho,
      Teemu Hinkula, Tero Pirinen, Vadim Gurkalov, Aleksi Matsi,
      Jani Hannula, Rami Nuotio (Finland)
  * French: Noel Lambert (France)
  * Galician: Debora Pereiro Carbajo, Esperanza Gesteira Losada,
      Enrique de la Torre Fernandez, Fernando Zacarias Maceiras,
      Ignacio Larrosa Canestro, Jesus Garcia Otero, Irene Arias Lopez (Spain)
  * Georgian: Lasha Kokilashvili (Georgia)
  * German: Markus Hohenwarter, Judith Hohenwarter, Andreas Lindner,
      Sandra Reichenberger, Christina Biermair, Andrea Duringer,
      Barbara Kimeswenger, Corinna Kroehn, Kurt Soeser,
      Johanna Zoechbauer, Alexander Hartl, Sarah Starlinger,
      Sabrina Wallner, Magdalena Freudenhalter (Austria),
      Yves Kreis (Luxembourg), Birgit Lachner (Germany)
  * Greek: Nicholas Mousoulides, Constantinos Christou (Cyprus),
      Spiros Mavrogiannis, Manolis Koutlis,
      Fergadiotis Athanasios, Alkeos Souyoul (Greece)
  * Hebrew: Guy Hed (Israel)
  * Hindi: Sanjay Gulati, Parth Bhattacharya, Vikrant Dubey,
      Girish Belkar (India)
  * Hungarian: Zsuzsanna Papp-Varga, Andras Hrasko, Peter Csiba,
      Zoltan Major, Maria Sz. Fekete, Ildiko Kezer, Viktoria Kmecs,
      Szabolcs Sulik, Lajos Szilassi, Zoltan Kovacs, Agnes Tamcsu,
      Tamas Kalcza, Judit Elias, Gabriela Ferenczy (Hungary)
  * Icelandic: Freyja Hreinsdottir (Iceland)
  * Indonesian: Aam Sudrajat (Indonesia)
  * Irish: Maurice O'Reilly (Ireland)
  * Italian: Simona Riva, Alessandra Tomasi (Italy)
  * Japanese: Akihito Wachi, Kazuhiro Hasegawa (Japan)
  * Kazakh: Talgat Bainazarov (Kazakhstan)
  * Korean: Kyeongsik Choi (Korea)
  * Lithuanian: Rokas Tamosiunas, Antanas Apynis (Lithuania)
  * Macedonian: Linda Fahlberg-Stojanovska, Jasmina Markoska,
      Zoran Trifunov, Alexandar Momirovski (FYR Macedonia)
  * Malay: Daniel Leong Chee Kin (Malaysia)
  * Marathi: Smita Patil, Aparna Lalingkar (India)
  * Mongolian: Navchaa Tserendorj, Amarzaya Amartuvshin,
    Gerelchimeg Batdelger, Otgonnaran Ochirbat, Batnasan Davaa (Mongolia)
  * Nepali: Bhesh Raj Mainali, Keshab Prasad (Nepal)
  * Norwegian: Sigbjorn Hals (Norway)
  * Persian: Saeed Aminorroaya, Ali SafarNavadeh, Azam Zabihi,
      Amir MirSaeed (Iran)
  * Polish: Ania Borkowska, Marzanna Miasko, Malgorzata Paliga
      Ewa Piwek, Edyta Pobiega, Kasia Winkowska-Nowak, Jerzy Mil,
      Przemyslaw Kajetanowicz, Malgorzata Labuda (Poland)
  * Portuguese (Brazil): Humberto Bortolossi, Celina A. A. P. Abar,
    Gerson Pastre de Oliveira, Lisbete Madsen Barbosa,
    Herminio Borges Neto, Alana Paula Araujo Freitas, Luciana de Lima,
    Alana Souza de Oliveira (Brazil)
  * Portuguese (Portugal): Jorge Geraldes, Antonio Ribeiro (Portugal)
  * Romanian: Alexandra Fortis, Casian Colcher, Valerian Antohe,
      Moni Ungvari (Romania)
  * Russian: Anatoly Scherbakov, Beatrice Versichel,
      Bugaevsky Vladimir (Russia)
  * Serbian: Djordje Herceg, Dragoslav Herceg (Serbia), Jelena Arnaut,
      Mirko Capara, Vesna Miletic (Bosnia and Herzegovina)
  * Sinhala: Dakshila Kamalsooriya, Dinithi Weerasekara, Kalumi Probodya
  * Slovak: Peter Csiba, Iveta Kohanova (Slovakia)
  * Slovenian: Stanislav Senveter (Slovenia)
  * Spanish: Liliana Saidon (Argentina), Rafael Losada Liste (Spain),
    Fabian Vitabar (Uruguay)
  * Swedish: Jonas Enlund (Finland), Thomas Lingefjard, Jonas Hall (Sweden)
  * Tamil: Kengatharaiyer Sarveswaran, Balanithy Murugaiah,
      Vasuraj Dhamodharan
  * Tajik: Yusuf Balkas (Tajikistan)
  * Thai: Rachaya Srisurichan, Alongkot Maiduang, Donny Passary (Thailand) 
  * Turkish: Erol Karakirik, Mustafa Dogan, Suleyman Cengiz (Turkey)
  * Ukrainian: Valentyna Pikalova, Valera Rakuta (Ukraine)
  * Uyghur: Tuniyaz Ablikim (China)
  * Uzbek: Shavkat Shaimardanov (Uzbekistan)
  * Valencian: Pilar Embid Giner, Vicente Balaguer (Spain)
  * Vietnamese: Nguyen Thanh Trung, Quang Nguyen,
      Nguyen Danh Nam (Vietnam)
  * Welsh: Uned Gyfieithu Translation Unit, Prifysgol Bangor University,
      Gwyn Jones, Sera Roberts, Geraint Rowlands (Wales)
  * Yiddish: Eliezer Niborski (France, Israel)
  * Xhosa: Vuyani Matsha (South Africa)




                                LICENSE

             GeoGebra Non-Commercial License Agreement

The International GeoGebra Institute is a non-profit organization
registered in Austria and having its office in Linz, Austria ("we",
"our" or "us"). We develop and support the GeoGebra dynamic mathematics
software application, including its source code, installers, web
applications and services, language files and associated documentation
("GeoGebra" or "the Software"). We operate GeoGebra (and publish its
related resources) through our websites located at
http://www.geogebra.org/ and http://www.geogebratube.org.

The terms of this License form a binding agreement between you, an
individual user or non-commercial organization ("you" or "your"), and us
regarding your non-commercial use of GeoGebra. By downloading, accessing
or otherwise using GeoGebra you indicate your agreement to be bound by
these License terms.

PLEASE NOTE THAT THIS LICENSE IS INTENDED FOR NON-COMMERCIAL USE OF
GEOGEBRA ONLY. IF YOU INTEND TO USE GEOGEBRA FOR A COMMERCIAL PURPOSE,
PLEASE CONTACT office@geogebra.org TO ARRANGE A COLLABORATION AGREEMENT
WITH US BASED ON OUR COMMERCIAL LICENSE TERMS.

If you would like to help with developing GeoGebra please find all
details on how to get involved (including GeoGebra's source code) via
this link: http://dev.geogebra.org.

Non-commercial License Terms

1. This License incorporates (by reference) additional license terms
published by the Free Software Foundation and the Creative Commons
Corporation. In the event of any conflict between those additional terms
and the terms of this License, the latter shall prevail.

2. The GeoGebra installers, web services and various copyright materials,
graphics and resources made available are licensed to you on a limited,
non-exclusive, personal, non-transferable and royalty-free license under
which you are free to use, copy, distribute, modify and transmit the GeoGebra
installers, web services and the copyright materials PROVIDED THAT you only
do so for non-commercial purposes (without charging a fee to any third party)
and PROVIDED THAT you attribute the work to us by (at least) mentioning our
name, including an appropriate copyright notice and providing a link to our
website located at http://www.geogebra.org

3. The GeoGebra source code is licensed to you under the terms of the
GNU General Public License (version 3 or later) as published by the Free
Software Foundation, the current text of which can be found via this
link: http://www.gnu.org/licenses/gpl.html ("GPL"). Attribution (as
required by the GPL) should take the form of (at least) a mention of our
name, an appropriate copyright notice and a link to our website located
at http://www.geogebra.org.

4. The GeoGebra language files (including all user interface "translation"
files in the GeoGebra application and applets), all GeoGebra documentation
(including  "GeoGebra Help", "GeoGebra Quickstart" and all other
documentation files found on the GeoGebra webservers) and all GeoGebra
user interface image and style files (including logos, icons and style
sheets) are licensed to you under the terms of the Creative Commons
Attribution-NonCommercial-ShareAlike licence (version 3.0 or later), the
current text of which can be found via this link:
http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode. Attribution
(as required by that Creative Commons license) should take the form of (at
least) a mention of our name, an appropriate copyright notice and a link
to our website located at http://www.geogebra.org.

5. The Software (and all related materials and resources) are licensed
to you WITHOUT ANY WARRANTY and on an AS IS basis including without
limitation the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. We accept no liability for your use of the Software
(save to the extent such liability cannot be excluded as a matter of
law).

6. The Software (and all related materials and resources) are licensed
to you without any offer or promise of support or future development by
the International GeoGebra Institute or any third party. Please note
that support services are available under the terms of our Collaboration
Agreement – please contact office@geogebra.org for more information.

7. You may install GeoGebra on multiple devices in multiple locations
PROVIDED THAT you always use the Software for non-commercial purposes
and otherwise in accordance with these License terms.

8. The copyright and other intellectual property rights (including any
trade marks) of whatever nature (arising anywhere in the world) in the
GeoGebra software (and all related resources) are and will remain our
property (or in the case of third party materials (including software
libraries) which we have the right of use, the property of the third
party licensor), and we reserve the right to grant licenses to use the
GeoGebra software (and all related resources) to third parties.

9. An "appropriate copyright notice" for the purposes of this License
shall take the following form:
Copyright (C) International GeoGebra Institute, 2013

10. This License is personal to you and you must not assign it to a
third party or permit any third party to benefit from it without our
prior written consent.

11. You will notify us immediately if you become aware of any
unauthorised use of the whole or any part of the GeoGebra software (and
all related resources).

12. If any of the provisions of this License (including the additional
terms incorporated by reference) are held to be invalid or unenforceable
under any applicable statute or rule of law, it is to that extent to be
deemed omitted from the License. Such an omission will not affect the
validity of the remaining provisions of the License, which will remain
in full force and effect.

13. This License shall be governed by and interpreted in accordance with
Austrian law.

These License terms were last updated in December 2014.

------------------------------------------------------------------------
Libraries used by GeoGebra:
  * The Apache Commons Mathematics Library,
    http://commons.apache.org/math/ (Apache Software License)
  * EPS Graphics, http://epsgraphics.sf.net (GPL)
  * FreeHEP Java Libraries, http://java.freehep.org (LGPL)
  * Giac, http://www-fourier.ujf-grenoble.fr/~parisse/giac.html (GPL3)
  * Gluegen, http://java.net/projects/gluegen/sources/svn/show and
    http://kenai.com/projects/gluegen/sources/gluegen-git/show (BSD)
  * JFugue 2.1 (LGPL), http://www.jfugue.org/jfugue-2.1.zip (LGPL)
  * JLaTeXMath, https://github.com/opencollab/jlatexmath (GPL2+)
  * JOGL 2, https://github.com/sgothel/jogl (BSD),
  * JUNG, http://jung.sourceforge.net (BSD)
  * OpenCSV, http://opencsv.sourceforge.net/ (Apache 2.0)
  * OpenGeoProver, http://code.google.com/p/open-geo-prover/ (GPL3)
  * SVG Salamander, http://svgsalamander.java.net/ (LGPL / BSD)
  * Tango Icon Gallery, http://tango.freedesktop.org (Public Domain)
  * zip.js, http://gildas-lormeau.github.com/zip.js/ (BSD)
  
For other tools used for running or building GeoGebra please see
http://dev.geogebra.org/trac/wiki/SourcesForUsedLibraries

------------------------------------------------------------------------
International GeoGebra Institute
Wolfauerstr 90, 4040 Linz, Austria
office@geogebra.org
