Newsgroups: comp.lang.apl
Path: watmath!watserv1!utgpu!cs.utexas.edu!sdd.hp.com!apollo!keil
From: keil@apollo.hp.com (Mark Keil)
Subject: programming in J
Lines: 43
Message-ID: <1991Sep18.055706.29046@apollo.hp.com>
Summary: how?
Keywords: J prorammming wsis
Sender: netnews@apollo.hp.com (USENET posting account)
Nntp-Posting-Host: thor.ch.apollo.hp.com
Organization: Hypertext Org Chart
Date: Wed, 18 Sep 1991 05:57:06 GMT

Ok, I've gotten J from ISI (for the MAC), and I've looked through the
dictionary and tutorial, and tried some of the examples.
I've also just played with it some. It's interesting.

Now, I'd like to write some simple programs. But I'm a bit lost...
The dictionary doesn't address prose & style.
(And yes, I'll order programming in J [real soon now :-])

I liked APL, and I know how to program in it, and I'm looking for
how do do in J what I used to do in APL .

So, how do I

    branch? Is this possible?
    do conditionals

    What is the equivelent (if any) of )fns
                                       )vars
                                       )grp



    Is J a superset of APL?
    Can it read An APL workspace? And and run it?
    Is there a translators giude (APL -> J)

    Are the any workspaces for J that I can ftp?

    do nested arrays? (actually I never used them in APL, but I've heard about
                       them and figured that J must be able to do them? :-)

Other:

    Roger & Ken & CO. , May I suggest that you include a printable
    registration & order form on the distrubution media (all
    media, including ftp). It will make it easier for people to
    register and order.

Thanks, Mark
-- 
 Mark Keil               HP/Apollo Computer,  Chelmsford MA 01824
 +1 508-256-6600 x2495   keil@apollo.hp.com  /  {decvax,mit-erl,yale}!apollo!keil

