Cabri Links
The definitive list of Cabri links is at the Cabri Home Page Cabri linksMy favourite is abraCAdaBRI
Another site worth a visit is Tim Lister's Cabri Page.
This deals with hyperbolic (ie noneuclidean) applications on Cabri.
There are some very nice macros to let you explore the
hyperbolic plane, and the site provides really good documentation.
An alternative toolbar for hyperbolic geometry may be obtained from
Hyperbolic Menus
HypMenF.men has French help messages HypMenUS.men has English messages.
A fuller treatment of hyperbolic geometry, with a discussion of the 5th postulate is
avilable on abraCadaBRI
