Cinderella is a unique, technically very sophisticated teachware for geometry. It will be used as a tool by students learning Euclidean, projective, spherical and hyperbolic geometry, as well as in geometric research by scientists. Moreover, it can also serve as an authors' tool to design web pages with interactive constructions or even complete geometry exercises.

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.