This is the home page of C.a.R. (compass and ruler), a program, that simulates school geometry constructions with a pair of compasses and a straightedge. Beyond the simple constructions, C.a.R. is a powerful program using macros, expressions, fine printing, web export, scripting and many more advanced features. You can use it for a variety of purposes, including teaching of geometry, testing geometry skills, classroom demonstration and much more.
The program uses Java, and runs on almost any modern platform. Moreover, constructions and assignments can be published in the Net. The interface uses modern standards. The interface runs in English, German, Italian, Spanish, Portuguese, Brazilian, Polish and Danish. If you want to translate into your own language, please follow the link to the Technical Documentation.
On these pages, you will find a rich documentation, and numerous examples and demos. You will also find the download links for various operating systems. Please enjoy looking around!
The program is freeware, and the source is available and free by the GNU General Public License. C.a.R. is frequently updated, so have a look for recent versions. If you want to distribute the program, provide a link to this home page.
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