I used APL and also at least one flavor of BASIC that had index origin control. I have no problem with J fixing index origin at 0.
Tom Arneson -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roger Hui Sent: Saturday, July 24, 2010 08:17 To: Programming forum Subject: [Jprogramming] index origin 0 I have been asked by some APL colleagues about index origin 0 in J. The question is, does the choice of a fixed value of 0 for index origin a hindrance to your work? The question is specifically addressed to "ordinary domain experts", people with no software engineering in their background and are not professional mathematicians. In case you did not know, in APL there is a choice known as the index origin, controlled by the variable quad-io, of counting from 1 instead of from 0, affecting the left argument of { and the result of i. , among other things. I will say no more than this to avoid biasing your answers. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
