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From: liberte@CS.UIUC.EDU (Daniel LaLiberte)
Newsgroups: gnu.emacs.help,comp.emacs
Subject: Re:  please help this idiot
Message-ID: <9102281808.AA07209@aspen.cs.uiuc.edu>
Date: 28 Feb 91 18:08:56 GMT
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dear smouldering idiot dog,

elisp is a pretty dumb version of lisp.  It is missing alot of
useful things found in Common Lisp.  I suggest you use mapcar
on your list... something like this:

(mapcar (function (lambda (p) (apply '- p))) coord)

dan