C.a.R.

C.a.R. – Compass and Ruler (also known as Z.u.L., which stands for the German "Zirkel und Lineal") – is a free and open source interactive geometry software that can do geometrical constructions in Euclidean and non-Euclidean geometry. The software is Java based.

Licensed under the terms of the GNU General Public License (GPL).

ee also

* Compass and straightedge construction

External links

* [http://mathsrv.ku-eichstaett.de/MGF/homes/grothman/java/zirkel/doc_en/ C.a.R.]
* [http://db-maths.nuxit.net/CaRMetal/index_en.html CaRMetal] — it includes all of C.a.R. functionalities, but follows a different approach from the graphical interface point of view.
* [http://compute.ku-eichstaett.de/MGF/wikis/caruser/doku.php?id=history History of the C.a.R.]