Sometime we make changes which will cause files to behave differently. PDF generated using the open source mwlib toolkit. Wed, 14 Dec 2016 02:33:55 CET GeoGebra Manual The official manual of GeoGebra. GeoGebra 4.0 (August 2011) Getting to Know GeoGebra4.0 Let's begin by getting GeoGebra4.0 Beta webstarted on your laptop. Differences from GeoGebra 4.4 to 5.0 • The winding rule [1] for self-intersecting polygons has changed so they will look different. An Introduction To GeoGebra 2. GeoGebra is backward compatible in sense that files created with older version should open in later versions. This is a fully functioning version of GeoGebra, scheduled to become the official webstart version in late August (you will then follow the procedure in Section 1 to get GeoGebra4.0 started).