"Design of APL" seems most likely. See its introduction. http://www.research.ibm.com/journal/rd/174/ibmrd1704F.pdf
The same introduction sounds a note of caution: Different people claiming to follow the same broad principles may well arrive at radically different designs; an appreciation of the actual role of the principles in design can therefore be communicated only by illustrating their application in a variety of specific instances. It must be remembered, of course, that in the heat of battle principles are not applied as consciously or systematically as may appear in the telling. ... ----- Original Message ----- From: Tracy Harms <[email protected]> Date: Wednesday, May 27, 2009 22:35 Subject: [Jchat] KEI's four main principles for APL To: Chat forum <[email protected]> > Some months back I read, somewhere on the web, an encyclopedia article > on APL written by Ken Iverson. In it he described four main principles > that had been kept in mind through its development. I haven't found > that piece listed in "A Bibliography of APL and J" on the J > wiki, or > at least I haven't confidently identified it. Perhaps I'm > thinking of > "The Design of APL"? > > If somebody can help me know which work I am trying to rediscover, > I'll appreciate the guidance. > > My intent is to expand that list by identifying a few similar guiding > concepts that applied as development effort turned to J. These would > underscore why rank and verb trains are features, to note the most > prominent examples. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
