2 Introduction.- 2.1 Sample Applications.- 2.2 Design and Features.- 2.3 Technical Background.- 3 A Quick Start.- 3.1 Pappos’ Theorem.- 3.2 A Three Bar Linkage.- 4 Behind the Scenes.- 4.1 Problems in Interactive Geometry.- 4.2 Projective Geometry.- 4.3 Homogeneous Coordinates.- 4.4 Complex Numbers.- 4.5 Measurements and Complex Numbers.- 4.6 The Principle of Continuity.- 5 Reference.- 5.1 Overview.- 5.2 General Tools.- 5.3 Geometries.- 5.4 The Views.- 5.5 The Appearance Editor.- 6 Creating Interactive Webpages and Exercises.- 6.1 Glossary.- 6.2 Exporting Plain Examples.- 6.3 Exporting Animations.- 6.4 Creating Interactive Exercises.- 6.5 Post-Processing.- 6.6 Legal Issues.- 7 Installation.- 7.1 General Information.- 7.2 Installing on Windows 95, 98 or NT 4.0.- 7.3 Installation on Unix Platforms.- 7.4 Installing on MacOS.- 7.5 Installing on Other Java Platforms.- 7.6 Installing Using a Web Browser.- 7.7 Troubleshooting.- 7.8 Installing Netscape.- 8 License Agreement.- 8.1 Conditions of Use and Terms of Warranty.- 8.2 Nutzungs- und Garantiebedingungen.- 8.3 Java(tm) Runtime Environment.- 9 References.