Rene Grothmann's C.a.R.
 



Rene Grothmann


The figures in the program are produced by using the program C.a.R. (Compass and Ruler), an amazing program created by Rene Grothmann. The Grothmann's program is available for download in the Web. It is free and open source. C.a.R. is the a perfect dynamic geometry software for studying Euclidean Geometry.

The reader may verify easily the theorems of this encyclopedia by using C.a.R.

Many thanks to Rene Grothmann for his wonderful program.