From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gsl-discuss-return-5587-listarch-gsl-discuss=sources.redhat.com@sourceware.org>
Received: (qmail 9869 invoked by alias); 15 Dec 2009 17:17:08 -0000
Received: (qmail 9860 invoked by uid 22791); 15 Dec 2009 17:17:08 -0000
X-SWARE-Spam-Status: No, hits=-1.8 required=5.0
	tests=AWL,BAYES_00,SPF_PASS
X-Spam-Check-By: sourceware.org
Received: from mail.network-theory.co.uk (HELO mail.network-theory.co.uk) (66.199.228.187)
    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 15 Dec 2009 17:17:02 +0000
Date: Tue, 15 Dec 2009 17:17:00 -0000
Message-ID: <87d42ggnsv.wl%bjg@network-theory.co.uk>
From: Brian Gough <bjg@gnu.org>
To: Rhys Ulerich <rhys.ulerich@gmail.com>
Cc: gsl-discuss@sourceware.org
Subject: Re: Where a generalized Richardson extrapolation routine would fit in 	GSL?
In-Reply-To: <4a00655d0912131549w19638273nb51d723e9ddd9273@mail.gmail.com>
References: <4a00655d0908201247g7d7bd9a1t466f4a66f08df4@mail.gmail.com>
	<4a00655d0911291536t5a11752fp27ab9c274148f822@mail.gmail.com>
	<4a00655d0911291538y9f29830v984d1a796fdd5d1@mail.gmail.com>
	<m34ooa7qvr.wl%bjg@network-theory.co.uk>
	<4a00655d0912131549w19638273nb51d723e9ddd9273@mail.gmail.com>
User-Agent: Wanderlust/2.14.0 (Africa) Emacs/22.1 Mule/5.0 (SAKAKI)
MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka")
Content-Type: text/plain; charset=US-ASCII
X-Message-Mac: 6bd61bbf96796aa6e4a980f66552382d
Mailing-List: contact gsl-discuss-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gsl-discuss.sourceware.org>
List-Subscribe: <mailto:gsl-discuss-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gsl-discuss/>
List-Post: <mailto:gsl-discuss@sourceware.org>
List-Help: <mailto:gsl-discuss-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gsl-discuss-owner@sourceware.org
X-SW-Source: 2009-q4/txt/msg00061.txt.bz2

At Sun, 13 Dec 2009 17:49:28 -0600,
Rhys Ulerich wrote:
> Attached is a patch adding Richardson extrapolation routines, tests,
> documentation, and an example.  Please let me know if I can answer any
> questions.

Thanks, I have tested it out.  One question: it looks like this
extrapolates a vector quantity.  For simplicity, would it make sense
to work with scalars as in the gsl_sum routines -- since presumably
that is the common case -- or is there some application where vector
extrapolation is unavoidable? (could each component can be
extrapolated independently?)