From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org
X-Spam-Level: 
X-Spam-Status: No, score=-3.3 required=5.0 tests=MAILING_LIST_MULTI,
	RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL autolearn=ham
	autolearn_force=no version=3.4.4
Received: (qmail 6699 invoked from network); 4 Dec 2020 16:49:48 -0000
Received: from mother.openwall.net (195.42.179.200)
  by inbox.vuxu.org with ESMTPUTF8; 4 Dec 2020 16:49:48 -0000
Received: (qmail 21549 invoked by uid 550); 4 Dec 2020 16:49:42 -0000
Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm
Precedence: bulk
List-Post: <mailto:musl@lists.openwall.com>
List-Help: <mailto:musl-help@lists.openwall.com>
List-Unsubscribe: <mailto:musl-unsubscribe@lists.openwall.com>
List-Subscribe: <mailto:musl-subscribe@lists.openwall.com>
List-ID: <musl.lists.openwall.com>
Reply-To: musl@lists.openwall.com
Received: (qmail 15826 invoked from network); 4 Dec 2020 16:38:10 -0000
X-IronPort-AV: E=Sophos;i="5.78,393,1599516000"; 
   d="scan'208";a="481201968"
Date: Fri, 04 Dec 2020 17:37:59 +0100
Message-Id: <mwpn3pbk7s.fsf@tomate.loria.fr>
From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
To: musl@lists.openwall.com
Subject: [musl] Accuracy of Mathematical Functions in Single, Double, and Quadruple Precision

       Hi,

I have published a new version of my note, including results for double and
quadruple precision, and also for bivariate functions (atan2, hypot, pow):

https://homepages.loria.fr/PZimmermann/papers/#accuracy

With Musl 1.2.1, the largest error I found in double precision is 14 ulps,
except for the Bessel functions and the lgamma function.

If something changes in future versions, please tell me so that I can revise
my note.

Best regards,
Paul Zimmermann