[center][b][/b][/center][justify][b]GeoGebra is an open-source Dynamic Mathematics[br]Software for teaching and learning mathematics from middle school through[br]college level.[br][br]With an easy user interface, it is not only a popular Dynamic Geometry Software but also[br]provides basic features of Computer Algebra Systems to bridge some gaps between[br]geometry, algebra, and calculus.[/b][/justify]

[center][b][size=200]GeoGebra has [/size][/b][b][size=200]three basic interfaces[/size][/b][/center][center][b]1. Algebra View[br][br]2. Spreadsheet View[br][br]3. Graphics View[br] and[br][/b][b][size=200]Two advanced interfaces[/size][/b][br][br][b]4. 3D Graphics View[br][br]5. CAS ( Computer Algebra System)[/b][/center]