Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!swrinde!ucsd!ucbvax!hplabs!hpcc05!hpdmd48!rrr
From: rrr@hpdmd48.boi.hp.com (Rudi Rynders)
Newsgroups: comp.lang.apl
Subject: J and index-origin question.
Message-ID: <15160007@hpdmd48.boi.hp.com>
Date: 4 Dec 90 14:55:18 GMT
Organization: Hewlett Packard - Boise, ID
Lines: 13


 I am running J on a PC clone and have just begun to
 explore J. One thing that puzzles me is that while
 the default seems to be an index origin of 0, like
 if :    alph=. 'abcdefghijklmnopqrstuvwxyz'
  then    2{alph    returns 'c'  whereas for negative values
  as in :    _2{alph   returns 'y'  it looks like
	 an index origin of 1 prevails.
 Anyhow is there an equivalent to APL's QuadIO<-1 in J?
 Thanks in advance.
       Rudi Rynders.

 Comment here or e-mail to rrr@hpdmd48.boi.hp.com


Brought to you by Super Global Mega Corp .com