From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on
	ip-172-31-74-118.ec2.internal
X-Spam-Level: 
X-Spam-Status: No, score=-0.0 required=3.0 tests=BAYES_40 autolearn=ham
	autolearn_force=no version=3.4.4
Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED.2uCIJahv+a4XEBqttj5Vkw.user.gioia.aioe.org!not-for-mail
From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Question about best practices with numerical functions
Date: Sat, 4 Jul 2020 09:50:57 +0200
Organization: Aioe.org NNTP Server
Message-ID: <rdpcd1$1o2l$1@gioia.aioe.org>
References: <fa2c6030-8bed-44c6-b5ed-0e24495a5085o@googlegroups.com>
NNTP-Posting-Host: 2uCIJahv+a4XEBqttj5Vkw.user.gioia.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Complaints-To: abuse@aioe.org
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101
 Thunderbird/68.10.0
Content-Language: en-US
X-Notice: Filtered by postfilter v. 0.9.2
Xref: reader01.eternal-september.org comp.lang.ada:59334
List-Id: <comp.lang.ada>

On 04/07/2020 07:30, mockturtle wrote:

> I have a question about the best way to manage a potential loss of precision in a numerical function.  This is a doubt that came to my mind while writing a piece of software; now I solved the specific problem, but the curiosity remains.

[...]

>     [5] ???
> 
> Any suggestions?

[5] Interval computations is the best way to handle rounding errors:

    https://en.wikipedia.org/wiki/Interval_arithmetic

An Ada implementation is here:

    http://www.dmitry-kazakov.de/ada/intervals.htm

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de