Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpl-opus!hpcc05!hpdmd48!rrr From: rrr@hpdmd48.boi.hp.com (Rudi Rynders) Newsgroups: comp.lang.apl Subject: Re: Yet another message from Roger Hui Message-ID: <15160014@hpdmd48.boi.hp.com> Date: 17 Jan 91 21:51:30 GMT References: <1991Jan14.210146.28858@yrloc.ipsa.reuter.COM> Organization: Hewlett Packard - Boise, ID Lines: 22 Well , this is very interesting ! The definition of "over" I quoted in my original query , I did NOT transcribe incorrectly ! It came straight from lesson 5 of "TANGIBLE MATH". The "over" mentioned in the previous response is different from this. To reiterate: As listed in my copy of "TANGIBLE MATH ": over=.;@({.;}.)&":@, whereas in the previous response : over=.({.;@;}.)&":@, They both seem to be legal because they achieve the same result. My thanks to Sam Sirlin and Leigh Clayton and Roger Hui, for their responses. One further comment on the issue of whether the "Dictionary" is "obscure" or merely "terse". I'll settle for " a bit abstruse". It definitely requires some careful study . As for my suggestion of a text comparing APL and J: I still think it would be a good idea to have one to make the path to "J" a bit less thorny. The chances of "J" becoming popular will be a lot better with it than without it IMHO.