Path: csiph.com!usenet.pasdenom.info!news.albasani.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <zachary.ware@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.048
X-Spam-Evidence: '*H*': 0.90; '*S*': 0.00; 'feasible.': 0.09; 'similar,': 0.09; 'subject:module': 0.09; 'itself.': 0.14; 'initially,': 0.16; 'math,': 0.16; 'modules.': 0.16; 'reedy': 0.16; 'sender:addr:gmail.com': 0.17; 'wrote:': 0.18; 'wed,': 0.18; 'module': 0.19; 'feb': 0.22; 'to:name:python-list@python.org': 0.22; 'math': 0.24; '(or': 0.24; 'least': 0.26; 'header:In-Reply- To:1': 0.27; 'idea': 0.28; 'function': 0.29; 'message- id:@mail.gmail.com': 0.30; 'posting': 0.31; 'decimal': 0.31; 'could': 0.34; 'but': 0.35; 'received:google.com': 0.35; 'really': 0.36; 'module.': 0.36; 'should': 0.36; 'step': 0.37; 'to:addr :python-list': 0.38; 'pm,': 0.38; 'anything': 0.39; 'to:addr:python.org': 0.39; 'even': 0.60; 'algorithms': 0.60; 'course': 0.61; 'name': 0.63; 'such': 0.63; 'worth': 0.66; 'subject': 0.69; 'further,': 0.74; 'thing,': 0.91; 'ware': 0.91
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:content-type; bh=SfeJaSuCCG+8t7hpJp6D99AHHayTR53bo7ExNXX64TQ=; b=w5DkGSyZsHfzDXqK+h+AR6aNs58S3Uf1bTzBlXv0tjvNl9I3mDE6Ef2oyEuqdYYR9X EsanVMJJnMrr9C7tULEdbmg/JjbhEf/BqVLXQvUj6rukKGTAfykiaNBDHuFovoQQ/HtA /nay0Ec26pSaizDJsceGXItAhQHNTCWqN8DJqVJH4bNcG1biu2T1Myej98iweA6b+8b+ yfe4IZVAfj7la2DzAqaMSWdvbQeoZ5/KFDmvpzlgJpQz8JTYX65aan/wFaCRYMAYSdC7 vZQaLFKg/ppNwHYPD0BKGjjclWzjQI25wJSuwafCfnMr32YnDld3D+nl/YTVHKhUv/ow lVjA==
X-Received: by 10.205.32.142 with SMTP id sk14mr13333935bkb.18.1392848889347; Wed, 19 Feb 2014 14:28:09 -0800 (PST)
MIME-Version: 1.0
Sender: zachary.ware@gmail.com
In-Reply-To: <le3a51$4b4$1@ger.gmane.org>
References: <02cdd9c7-aef7-4cc7-a813-cd1c9627ceb4@googlegroups.com> <mailman.7160.1392836388.18130.python-list@python.org> <94b1962a-0004-4c5b-b484-972a166b88b5@googlegroups.com> <CAKJDb-NaZmLysq+2KWgd_f4UPKCk7jdLZkvcCM6ECL5TSAwCRQ@mail.gmail.com> <le3a51$4b4$1@ger.gmane.org>
From: Zachary Ware <zachary.ware+pylist@gmail.com>
Date: Wed, 19 Feb 2014 16:27:49 -0600
X-Google-Sender-Auth: Kuu8i1gPAIRROcT9w4Glpq_s01U
Subject: Re: extend methods of decimal module
To: "python-list@python.org" <python-list@python.org>
Content-Type: text/plain; charset=UTF-8
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.7168.1392848897.18130.python-list@python.org>
Lines: 23
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1392848897 news.xs4all.nl 2908 [2001:888:2000:d::a6]:41158
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:66724

On Wed, Feb 19, 2014 at 4:10 PM, Terry Reedy <tjreedy@udel.edu> wrote:
> On 2/19/2014 4:54 PM, Zachary Ware wrote:
>> You might consider suggesting a "decimal.math" module on python-ideas.
>
>
> Or just dmath.

The name (and location) is of course endlessly bikesheddable :)

> I think this is a better idea than suggesting additions to
> decimal itself. For one thing, anything put in decimal would be subject to
> change if the function were to be added to the standard. It is worth noting
> in such a posting that Krah's speedup make such functions really feasible.
> The algorithms could be similar, at least initially, to the one used for
> floats.

It might be good to even go a step further, and make it "amath" (or
"numbers.math", or ...), a type-agnostic math module.  Such a module
would likely be slower than math, cmath, or "dmath", but should end
the proliferation of math modules.

-- 
Zach