X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil]
	["284" "Thu" "1" "October" "92" "19:09:07" "+0100" "Paul Taylor" "pt@DOC.IC.AC.UK" nil "6" "Re: rotation of boxes using ?specials" "^Date:" nil nil "10"])
Return-Path: <LATEX-L@vm.urz.Uni-Heidelberg.de>
Received: from sc.ZIB-Berlin.DE (serv01) 
        by dagobert.ZIB-Berlin.DE (4.1/SMI-4.0/1.9.92 )
	id AA06572; Thu, 1 Oct 92 19:11:08 +0100
Received: from vm.urz.Uni-Heidelberg.de (vm.hd-net.uni-heidelberg.de) by sc.ZIB-Berlin.DE (4.0/SMI-4.0-sc/19.6.92)
	id AA23763; Thu, 1 Oct 92 19:10:36 +0100
Message-Id: <9210011810.AA23763@sc.zib-berlin.dbp.de>
Received: from DHDURZ1 by vm.urz.Uni-Heidelberg.de (IBM VM SMTP V2R2)
   with BSMTP id 3703; Thu, 01 Oct 92 19:11:18 CET
Received: from DHDURZ1 by DHDURZ1 (Mailer R2.08 R208004) with BSMTP id 3686;
 Thu, 01 Oct 92 19:11:14 CET
Received: from DHDURZ1 by DHDURZ1 (Mailer R2.08 R208004) with BSMTP id 3683;
 Thu, 01 Oct 92 19:11:11 CET
Reply-To: Mailing list for the LaTeX3 project <LATEX-L@vm.urz.Uni-Heidelberg.de>
Date:         Thu, 1 Oct 92 19:09:07 +0100
From: Paul Taylor <pt@DOC.IC.AC.UK>
Sender: Mailing list for the LaTeX3 project <LATEX-L@vm.urz.Uni-Heidelberg.de>
To: Multiple recipients of <LATEX-L@vm.urz.Uni-Heidelberg.de>
Subject:      Re: rotation of boxes using ?specials
Status: R
X-Status: 
X-Keywords:                  
X-UID: 817


> _any_ DVI driver, not only a PostScript interpreter, should be able
> to calculate the arctan.
> Is it realistic to assume that any DVI driver can do this?
Presumably your dvi driver is written in C, Pascal or similar. These have
library routines to calculate arctan, TeX doesn't.