I was looking through the essay on the wiki about partitions, and I was looking at the verb pn:
pn =: -/@(+/)@:($:"0)@rec ` (x:@(0&=)) @. (0>:]) M. rec =: - (-: (*"1) _1 1 +/ 3 * ]) @ (>:@i.@>.@%:@((2%3)&*)) I was a little confused about the way that $: works - does it re-execute the whole verb pn or just the first train of that tie? Thanks. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
