There are many alternatives to C.a.R. for Linux if you are looking for a replacement. The best Linux alternative is GeoGebra, which is free. If that doesn't suit you, our users have ranked six alternatives to C.a.R. and three of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to C.a.R. are Cinderella and GeoGebra Discovery.
GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching. It has received several educational software awards in Europe and the USA.
Cinderella is the interactive geometry software and a universal tool for visualization and simulation of data and algorithms written in Java programming language. Cinderella is Math in motion.
GeoGebra Discovery is an experimental version of GeoGebra. It contains some bleeding edge features of GeoGebra that are under heavy development and therefore not intended for every day use yet, so they are not included in the official GeoGebra version.
Austria
EU
Germany