From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5104 invoked by alias); 10 Feb 2009 15:30:58 -0000 Received: (qmail 5092 invoked by uid 22791); 10 Feb 2009 15:30:57 -0000 X-SWARE-Spam-Status: No, hits=-1.6 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, 10 Feb 2009 15:30:50 +0000 Date: Tue, 10 Feb 2009 15:30:00 -0000 Message-ID: From: Brian Gough To: M Joonas Pihlaja Cc: gsl-discuss@sources.redhat.com Subject: Re: Legendre polynomial documentation In-Reply-To: References: User-Agent: Wanderlust/2.14.0 (Africa) Emacs/22.2 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: 753dfbc09a5e721a89c5230dcb551ac0 Mailing-List: contact gsl-discuss-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gsl-discuss-owner@sourceware.org X-SW-Source: 2009-q1/txt/msg00008.txt.bz2 At Mon, 9 Feb 2009 07:38:21 +0200 (EET), M Joonas Pihlaja wrote: > 1) The _array function documentation uses the absolute value |m| > as the lower bound of the array indices yet also specifies m > >= 0. Why the absolute value if negative m aren't allowed after > all? Although it's not implemented, I expect there was an intention to extend the function to include negative m at some point. > 2) The docs say the _deriv_array functions compute "optionally > their derivatives", which made me think that the > result_deriv_array parameter could be passed in as NULL if one > didn't need the derivatives. Turns out that's not what it meant. > :) The phrasing could be a little bit more explicit IMHO. Ok, I've changed the wording to avoid the confusion. -- Brian Gough