GeoGebra Non-Commercial License Agreement

The GeoGebra Group consists of the non-profit organization International
GeoGebra Institute and GeoGebra GmbH having their offices 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.

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
gro.arbegoeg@eciffo 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:
https://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 gro.arbegoeg@eciffo 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 © 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 April 2013.
