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=-3.1 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED,
	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 31167 invoked from network); 3 Aug 2021 08:37:09 -0000
Received: from mother.openwall.net (195.42.179.200)
  by inbox.vuxu.org with ESMTPUTF8; 3 Aug 2021 08:37:09 -0000
Received: (qmail 3383 invoked by uid 550); 3 Aug 2021 08:37:06 -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 3353 invoked from network); 3 Aug 2021 08:37:06 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
  d=inria.fr; s=dc;
  h=date:message-id:from:to:subject;
  bh=DGS3U4s/cJ1unOZaOT9ZplyGZWk+FkpOhLV3abURxLg=;
  b=alEZ6q+OXt2i7ll/kiTf3PKHus/YpbDx6wwN8PB6zCikroxmz9crQNVa
   vqNVxHMWrt04XV7RHUDsIukvLZpozCxHcCWxzv5H8k3THFugV/raCrtVZ
   l4MnuBtwu+WngAkpSLYkHzwXhLYDlHzKtcY2FZVd7PD6xC3Yyp+Kh6ooT
   Q=;
IronPort-HdrOrdr: =?us-ascii?q?A9a23=3ABVlNfaAowbU8RCXlHenY55DYdb4zR+YMi2TD?=
 =?us-ascii?q?uHobdfU4SKGlfr6V9sjzvCWc4Ar5M0tOpTnvAsW9fU8=3D?=
X-IronPort-AV: E=Sophos;i="5.84,291,1620684000"; 
   d="scan'208";a="389583331"
Date: Tue, 03 Aug 2021 10:36:44 +0200
Message-Id: <mwr1fa53hf.fsf@tomate.loria.fr>
From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
To: musl@lists.openwall.com
Subject: [musl] accuracy of mathematical functions

       Hi,

I am about to release a new update of the accuracy comparison of mathematical
functions [1]. It will mention Musl 1.2.2, the last release to date. The
following issues are still present in 1.2.2:

* acoshf and sinhf return a finite value instead of NaN (or the converse).
  Fixed by Szabolcs in February, but no new release since then.

* huge maximal errors for j0f, j1f, lgammaf, y0f, y1f

* huge maximal errors for j0, j1, lgamma, y0, y1

* large maximal known error for exp10l (40.1 ulps), expm1l (9.71e3 ulps),
  sinhl (9.71e3 ulps), powl (533 ulps), huge maximal known error for
  lgammal (9.08e19 ulps) and tgammal (3.69e19 ulps)

Best regards,
Paul

[1] https://members.loria.fr/PZimmermann/papers/accuracy.pdf