C.a.R.
| C.a.R. | |
|---|---|
 | |
 | |
| Original author(s) | René Grothmann |
| Initial release | January 1, 1996 |
| Stable release | 20.0
/ March 21, 2022 |
| Written in | Java |
| Operating system | Linux, Microsoft Windows, Mac OS X |
| Type | Interactive geometry software |
| License | GNU General Public License |
| Website | car |
C.a.R. (Compass and Ruler), also known as Z.u.L. (Zirkel und Lineal), is a free and open source interactive geometry app that can do geometrical constructions in Euclidean and non-Euclidean geometry. The software is Java based. The author is René Grothmann of the Catholic University of Eichstätt-Ingolstadt. It is licensed under the terms of the GNU General Public License (GPL).
Assignments
Assignments make possible to create Java applets, for a construction exercises. These applets can be used from the command line using the AppletViewer. (Previously, they could be run in a browser, but Java support in browsers has been disabled in recent years.)