Newsgroups: comp.lang.apl
Path: utzoo!utgpu!news-server.csri.toronto.edu!torsqnt!tmsoft!itcyyz!yrloc!hui
From: hui@yrloc.ipsa.reuter.COM (Roger Hui)
Subject: Re: what is j?
Message-ID: <1991May18.004902.29060@yrloc.ipsa.reuter.COM>
Reply-To: hui@yrloc.ipsa.reuter.COM (Roger Hui)
Organization: Iverson Software Inc.
References: <199113.993.337@canrem.uucp> <3970007@hpwrce.HP.COM>
Date: Sat, 18 May 91 00:49:02 GMT

a) J is an interpreter, but the subclass of verbs known as tacit 
definitions are compiled.  For example, the following verbs are compiled:
   square =. ^&2
   sqrt   =. ^&0.5
   norm   =. sqrt & (+/) & square

b) J is not yet available on any HP platform. If there is a demand
for such a port, then the main obstacle would be getting access 
to a machine to do the port. The system is written in C, and by now 
most of the portability bugs have been found.

There is no direct support for X Windows, but the related product
LinkJ allows calling between J and C.

c) How is Iverson Software making any money by selling it for $25?
Good question. However, you could have asked a better question,
because we are selling it for only $24.

-----------------------------------------------------------------
Roger Hui
Iverson Software Inc., 33 Major Street, Toronto, Ontario  M5S 2K9
(416) 925 6096