dly wrote: > So an operator is a special type of adverb, a function that acts on > other function to produce a new function? >
Ken Iverson described an operator as "sn entity that applies to a function to produce a related derived function" and credited Heaviside's D as his inspiration. Of course operators are functions in some general sense: howver, they are called adverbs in J and are sytactically different from verbs. Best wishes, John ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
