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Path: utzoo!utgpu!utcsri!utegc!utai!garfield!dalcs!silvert
From: silvert@dalcs.UUCP
Newsgroups: comp.sys.atari.st
Subject: Re: Prolog for the ST
Message-ID: <2571@dalcs.UUCP>
Date: Thu, 18-Jun-87 06:54:29 EDT
Article-I.D.: dalcs.2571
Posted: Thu Jun 18 06:54:29 1987
Date-Received: Fri, 19-Jun-87 06:35:17 EDT
References: <8@bnl.UUCP>
Organization: Modelling/Statistics Group, Bedford Inst. of Oceanography
Lines: 32
Summary: Rational visions exists, XPRO is OK

In article <8@bnl.UUCP>, drs@bnl.UUCP (David R. Stampf) writes:
> ..... and one called XPRO by a company called Rational Visions which had a
> cost of $40.  The good news is that the second company had a Phoenix address,
> and since I was going to be there for a week I thought I would drop in to see
> them.  To make a long story short, the phone number in the review was out of 
> service, and the address was in a u-rent-it type of place, so it is not at all
> clear where these people are located - they may not even live in Arizona.  I'm
> not saying that it doesn't exist, but I wouldn't send cash!

I purchased XPRO about a month or so ago by calling RV and then sending
cash.  It arrived promptly, and even though I am a Prolog novice, I find
it fine.  At least, when I work through C&M and try various exercises,
they work.

When I called I got a sort of general secretary, who sounds as though
she may be shared by several small operations.  I was then referred to a
man who sounded more like the author of the program than a salesman --
he knew Prolog, and gave me hints to get me started (book
recommendations, etc.).  I sent my money, and the package was sent
promptly.

My dealer has been unable to get XPRO through his distributors, so I
suspect that RV operates by direct sales only.  

Summary: The guy who sells XPRO may not be much of a business man, but
so far as I can tell it is a legit operation and the package is fine.

-- 
Bill Silvert, Modelling/Statistics Group, Marine Fish Division
Bedford Institute of Oceanography, Dartmouth, NS, Canada B2Y 4A2
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