The best reference is of course the book "A Programming Language". A few others are available online via http://keiapl.info/archive/ , in particular the paper "A Formal Description of System/360" http://www.research.ibm.com/journal/sj/032/falkoff.pdf . See pages 200 and 201 (pages 3 and 4 in the pdf numbering).
Some ideas that did not make it into APL made it into J. For example, the monads #. and #: originally denoted base 2 value and base 2 representation, were dropped in the move to APL, and are implemented in J. The story is recounted in brief in http://www.jsoftware.com/jwiki/Essays/Josephus_Problem ----- Original Message ----- From: "Don Guinn" <[EMAIL PROTECTED]> To: "Programming forum" <[email protected]> Sent: Friday, March 24, 2006 6:43 AM Subject: Re: [Jprogramming] parentheses ... But it made me think about some of the first thoughts Ken Iverson might have had before APL came to be. I have never seen any of this early work, but didn't he have some real interesting ideas on notation that did not get into APL? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
