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From: emjej@uokvax.UUCP
Newsgroups: net.books
Subject: Re: ISBN Numbers - interpretation?
Message-ID: <1300005@uokvax.UUCP>
Date: Thu, 1-Nov-84 15:59:00 EST
Article-I.D.: uokvax.1300005
Posted: Thu Nov  1 15:59:00 1984
Date-Received: Mon, 5-Nov-84 21:07:51 EST
References: <5236@brl-tgr.UUCP>
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Nf-ID: #R:brl-tgr:-523600:uokvax:1300005:000:279
Nf-From: uokvax!emjej    Nov  1 14:59:00 1984

The following info gleaned from an introductory Algol 68 text
(Brailsford and Walker, *Introductory Algol 68 Programming*(?),
Ellis Horwood):

ISBN check digit = (sum for i in {1..10} of i * ith digit) mod 11

Perhaps not too useful, but might come in handy...

					James Jones