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| Original author(s) | René Grothmann |
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| Initial release | 1 January 1996 |
| Stable release | 20.0
/ 21 March 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., which stands for the German "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.)
See also
External links
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