Demos

Downloading the C.a.R. archive takes a while, about 3 minutes on a 56k modem (It has to be done only once). You may better install the program and the documentation on your computer and view the demos locally.

The figure above only looks like a picture, but is a Java applet. It displays a construction, which is loaded from our server. Pages like this can automatically be generated by C.a.R.'s HTML export function.

Try to get the center of the circle to the origin. If you can make it, the triangle will become red. This is done by conditional formatting.