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 (ruler).
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 numerous examples and demos.
The program is freeware, and the source is available and free by the GNU General Public License.
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