There is a table entitled "Fold in various languages" in the Wikipedia page for Fold, here:
http://en.wikipedia.org/wiki/Fold_(higher-order_function) J is not among those listed. I'm not sure I'd do justice to J's riches on this topic, so if anybody else wants to beat me to adding J to that wiki, feel free to go for it! ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
