Thank you, Cliff! Those fractal examples are quite pretty! The operator in the first, #.@|:, is also fold, namely ([+2*])/, but the #.@|: expression is nicer and I like being able to use it rather than being forced to do ([+2*])/ as I would be in APL.
The other examples are even better in that you can't get the early termination semantics of i.&0 or i.&1 with a / fold (you could with the new F. family, and those are also nice examples pointed out by Jan-Pieter). -- Omar ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
