GeoGebra - Dynamic Mathematics for Everyone
Copyright 2001-2008 GeoGebra Inc.
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).  

DEVELOPERS
  * Markus Hohenwarter (Austria & USA): Project leader, since 2001
  * Michael Borcherds (UK): Lead developer, since 2007
  * Yves Kreis (Luxembourg): Developer, since 2005

Contributions by Loic Le Coq (Paris, France 2006); Joan Carles Naranjo, Victor Franco, 
  Eloi Puertas (Barcelona, Spain 2007); Philipp Weissenbacher (Vienna, Austria 2007); 
  Amy Varkey (Boca Raton, USA 2007); Cong Liu, Quan Yuan (Boca Raton, USA 2008);  
  Hans-Petter Ulven (Norway 2008); Florian Sonner (Germany 2008)
  
TRANSLATIONS
  * Arabic: Brahim Boulakbech, Haboubi Abdessalem (Tunisia)
  * Basque: Gonzalo Elcano Vizcay (Spain)
  * Bosnian: Maja Hrbat (Bosnia and Herzegovina)
  * Bulgarian: Hristo Stoyanov (Bulgaria)
  * Catalan: Jorge Sanchez, Jaume Bartroli, Pep Bujosa, Antoni Goma, 
      Roser Sebastian (Spain)
  * Chinese (Traditional): Fu-Kwun Hwang, Chen-Hui Lin, Pegasus Roe, Joe Chen (Taiwan)
  * Chinese (Simplified): Chen Xing (China)
  * Croatian: Sime Suljic, Ela Rac, Josip Klicinovic (Croatia)
  * Czech: Marie Pokorna, Pavel Sokol (Czech Republic)
  * Danish: Steen Grode (Denmark)
  * Dutch: Beatrijs Versichel, Ivan De Winne, Pedro Tytgat, Carel van de Giessen (Belgium)
  * English: Markus Hohenwarter, Judith Hohenwarter (Austria), Yves Kreis (Luxembourg),
      Michael Borcherds (Great Britain)
  * Estonian: Jane Albre (Estonia)
  * Finnish: Hannu Korhonen, Kirsi Malinen (Finland)
  * French: Noel Lambert (France)
  * Galician: Jesus Garcia Otero, Irene Arias Lopez (Spain) 
  * Georgian: Lasha Kokilashvili (Georgia)
  * German: Markus Hohenwarter, Judith Hohenwarter (Austria), Yves Kreis (Luxembourg)
  * Greek: Nicholas Mousoulides, Constantinos Christou (Cyprus), 
      Spiros Mavrogiannis, Manolis Koutlis, Fergadiotis Athanasios (Greece)
  * Hebrew: Guy Hed (Israel)
  * Hungarian: Sulik Szabolcs, Zsuzsanna Papp-Varga (Hungary)
  * Icelandic: Freyja Hreinsdottir (Iceland)
  * Indonesian: Aam Sudrajat (Indonesia)
  * Italian: Alessandra Tomasi, Simona Riva (Italy)
  * Japanese: Akihito Wachi, Kazuhiro Hasegawa (Japan)
  * Korean: Choi Kyeong-Sik (Korea)
  * Macedonian: Linda Fahlberg-Stojanovska, Jasmina Markoska, Blaze Tofilovski (FYR Macedonia)
  * Norwegian: Sigbjorn Hals (Norway)
  * Persian: Saeed Aminorroaya (Iran)
  * Polish: Ania Borkowska, Marzanna Miasko, Malgorzata Paliga, Ewa Piwek, Edyta Pobiega, Kasia Winkowska-Nowak (Poland)
  * Portuguese (Brazil): Humberto Bortolossi, Herminio Borges Neto, Alana Paula, 
      Luciana de Lima, Araujo Freitas, Alana Souza de Olivieira (Brazil)
  * Portuguese (Portugal): Jorge Geraldes, Antonio Ribeiro (Portugal)
  * Russian: Anatoly Scherbakov, Beatrice Versichel (Russia)
  * Serbian: Djordje Herceg, Dragoslav Herceg (Serbia)
  * Slovak: Peter Csiba, Iveta Kohanova (Slovakia)
  * Slovenian: Stanislav Senveter (Slovenia)
  * Swedish: Jonas Enlund (Finland), Thomas Lingefjard (Sweden)
  * Spanish: Liliana Saidon (Argentina)
  * Turkish: Erol Karakirik, Mustafa Dogan, Suleyman Cengiz (Turkey)
  * Vietnamese: Nguyen Thanh Trung, Quang Nguyen (Vietnam)
   
PROJECTS
  * University of Luxembourg et. al., co-funded by the Community programme eContentplus
     09/2007 to 09/2010: Interoperable Interactive Geometry for Europe (Intergeo)
  * University of Luxembourg
     01/2007 to 12/2009: GeoGebra for Primary School 
  * US National Science Foundation
     08/2006 to 07/2009: Supplements for http://smgem.mspnet.org  
  * Austrian Federal Ministry for Education, Science and Culture
     01/2006 to 12/2007: GeoGebra for Austrian Schools
  * Austrian Academy of Sciences
     02/2004 to 01/2006: DOC scholarship for Markus Hohenwarter
     
SUPPORT 
  * Department of Mathematics, University of Salzburg 
     hosting the GeoGebra Website     
  * Faculty LSHASE, University of Luxembourg
     providing the multi-platform software deployment solution      
  
SOFTWARE
  * MathPiper, https://mathrider.dev.java.net
  * Jasymca, http://webuser.hs-furtwangen.de/~dersch/
  * FreeHEP Java Libraries, http://java.freehep.org
  * Java EPS Graphics2D package, http://www.jibble.org/epsgraphics
  * HotEqn, http://www.atp.rub.de/VCLab/software/HotEqn/HotEqn.html
  * Michael T. Flanagan's Java library, http://www.ee.ucl.ac.uk/~mflanaga/java/ 
  * Tango Icon Gallery, http://tango.freedesktop.org
  * RestrictedFileSystemView class from Jython, http://www.jython.org
  * Mathworks/NIST JAMA Matrix Package, http://math.nist.gov/javanumerics/jama/
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GeoGebra LICENSE

1) GeoGebra Installer, Language and Documentation Files License:
   Creative Commons Attribution-NonCommercial-NoDerivs 3.0

2) GeoGebra Application and Source Code License:
   GNU General Public License v2

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1) GeoGebra Installer, Language and Documentation Files License

All GeoGebra installers, language files, and documentation files are 
subject to the following 
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License:

You are free to copy, distribute and transmit GeoGebra installers, 
language files, and documentation files free of charge under the 
following conditions:
 * Attribution. You must attribute the work
     (i.e. by linking to http://www.geogebra.org/)
 * NonCommercial. You may not use this work for commercial purposes 
     without permission of GeoGebra Inc. (office@geogebra.org).
 * No Derivative Works. You may not alter, transform, or build upon 
     this work.

The Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License 
can be found at: http://creativecommons.org/licenses/by-nc-nd/3.0/

GeoGebra file types that are subject to the above mentioned license:
 * GeoGebra installers ...
     are installation packages that let you install the GeoGebra 
     application and documentation files for your operating system 
     (Microsoft Windows, Mac OS X, Linux, etc.).
 * GeoGebra language files ...      
     are the user interface language files ("properties files") for 
     all languages of the GeoGebra application and GeoGebra applet. 
     They are packaged in the geogebra_properties.jar file and part
     of every official GeoGebra binary distribution.
 * GeoGebra documentation files ...
     are all "GeoGebra Help", "GeoGebra Quickstart" and other 
     documentation files found in the GeoGebra installers or 
     on the GeoGebra webserver.

Translations
  Translations of GeoGebra installers, language files or documentation 
  files are only allowed with permission of their respective authors. 
  Resulting translations are subject to the same copyright as the 
  original work (i.e. copyright of the original authors and Creative 
  Commons Attribution-NonCommercial-NoDerivs license). 
  The translators have the right to be attributed by name and contact 
  address in their translated work. Furthermore, translated GeoGebra 
  documentation files may not be used for commercial purposes without 
  permission of the original authors and the respective translators.

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2) GeoGebra Application and Source Code License

GeoGebra's source code is subject to the GNU General Public License:

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.

The GNU General Public License can be found at:
http://www.gnu.org/licenses/

If you are interested in GeoGebra's source code or want to help with 
programming, please write to Markus Hohenwarter (markus@geogebra.org).