From owner-freebsd-numerics@FreeBSD.ORG  Fri Sep 21 22:16:03 2012
Return-Path: <owner-freebsd-numerics@FreeBSD.ORG>
Delivered-To: freebsd-numerics@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id E55CF106566C
	for <freebsd-numerics@FreeBSD.org>;
	Fri, 21 Sep 2012 22:16:03 +0000 (UTC)
	(envelope-from brde@optusnet.com.au)
Received: from mail09.syd.optusnet.com.au (mail09.syd.optusnet.com.au
	[211.29.132.190])
	by mx1.freebsd.org (Postfix) with ESMTP id 5AD2A8FC0C
	for <freebsd-numerics@FreeBSD.org>;
	Fri, 21 Sep 2012 22:16:02 +0000 (UTC)
Received: from c122-106-157-84.carlnfd1.nsw.optusnet.com.au
	(c122-106-157-84.carlnfd1.nsw.optusnet.com.au [122.106.157.84])
	by mail09.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id
	q8LMFrJ7010417
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
	Sat, 22 Sep 2012 08:15:55 +1000
Date: Sat, 22 Sep 2012 08:15:53 +1000 (EST)
From: Bruce Evans <brde@optusnet.com.au>
X-X-Sender: bde@besplex.bde.org
To: Stephen Montgomery-Smith <stephen@missouri.edu>
In-Reply-To: <505CBF14.70908@missouri.edu>
Message-ID: <20120922080942.U3613@besplex.bde.org>
References: <5017111E.6060003@missouri.edu>
	<20120914212403.H1983@besplex.bde.org>
	<50538E28.6050400@missouri.edu> <20120915231032.C2669@besplex.bde.org>
	<50548E15.3010405@missouri.edu> <5054C027.2040008@missouri.edu>
	<5054C200.7090307@missouri.edu> <20120916041132.D6344@besplex.bde.org>
	<50553424.2080902@missouri.edu> <20120916134730.Y957@besplex.bde.org>
	<5055ECA8.2080008@missouri.edu> <20120917022614.R2943@besplex.bde.org>
	<50562213.9020400@missouri.edu> <20120917060116.G3825@besplex.bde.org>
	<50563C57.60806@missouri.edu> <20120918012459.V5094@besplex.bde.org>
	<5057A932.3000603@missouri.edu> <5057F24B.7020605@missouri.edu>
	<20120918162105.U991@besplex.bde.org>
	<20120918232850.N2144@besplex.bde.org>
	<20120919010613.T2493@besplex.bde.org> <505BD9B4.8020801@missouri.edu>
	<20120921172402.W945@besplex.bde.org>
	<20120921212525.W1732@besplex.bde.org>
	<505C7490.90600@missouri.edu> <20120922042112.E3044@besplex.bde.org>
	<505CBF14.70908@missouri.edu>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: freebsd-numerics@FreeBSD.org
Subject: Re: Complex arg-trig functions
X-BeenThere: freebsd-numerics@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Discussions of high quality implementation of libm functions."
	<freebsd-numerics.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-numerics>, 
	<mailto:freebsd-numerics-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-numerics>
List-Post: <mailto:freebsd-numerics@freebsd.org>
List-Help: <mailto:freebsd-numerics-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-numerics>, 
	<mailto:freebsd-numerics-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 21 Sep 2012 22:16:04 -0000

On Fri, 21 Sep 2012, Stephen Montgomery-Smith wrote:

> I did put in the pio2_hi etc stuff in before this email telling me to hold 
> off.
>
> I assume you still want pio2_hi etc stuff in catanh.  There is it still 
> m_pi_2.  I was thinking
> poi2_hi + (tiny + pio2_lo)
> or maybe declaring pio2_lo as volatile and using
> pio2_hi + pio2_lo

I have the latter.

m_pi_2 (better pio2) could be #defined as (pio2_hi + pio2_lo), but I
want to avoid this obfuscation.

Bruce