Joel VanderWerf <vjoel / path.berkeley.edu> wrote:
> Ruby doesn't optimize this tail recursion, but Scheme does. That's one 
> way Scheme could be said to be more "functional".

http://www.ccs.neu.edu/home/matthias/Presentations/ecoop2004.pdf
suggests that no language should be called properly OO unless it does
tail call optimisation :)

martin