From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) by sourceware.org (Postfix) with ESMTPS id 49F81388A413 for ; Thu, 21 Sep 2023 07:24:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 49F81388A413 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=inria.fr Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=inria.fr DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inria.fr; s=dc; h=date:message-id:from:to:cc:subject; bh=GSgwvsyz30C23uaiLgSwwBRle2At+dtg7pV0MrqK+2A=; b=p3gVUhogRQV40eqcAtmCZvuxNXRMjm5+PYkhMZpoXpvHhOpu6Oiaz9ZR D7DJPtCPKkPRK8a6RGB/Fb+6/m6a9p4deHFDIR5nddQoFlXBZACGBErEd XDrF2NhSunq2nGfBdwZsD52RU4u3JWS+1LT586lXkO8zLxGFUi6FtY/Le E=; Authentication-Results: mail3-relais-sop.national.inria.fr; dkim=none (message not signed) header.i=none; spf=SoftFail smtp.mailfrom=Paul.Zimmermann@inria.fr; spf=None smtp.helo=postmaster@coriandre Received-SPF: SoftFail (mail3-relais-sop.national.inria.fr: domain of Paul.Zimmermann@inria.fr is inclined to not designate 152.81.9.227 as permitted sender) identity=mailfrom; client-ip=152.81.9.227; receiver=mail3-relais-sop.national.inria.fr; envelope-from="Paul.Zimmermann@inria.fr"; x-sender="Paul.Zimmermann@inria.fr"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 ip4:128.93.142.0/24 ip4:192.134.164.0/24 ip4:128.93.162.160 ip4:89.107.174.7 mx ~all" Received-SPF: None (mail3-relais-sop.national.inria.fr: no sender authenticity information available from domain of postmaster@coriandre) identity=helo; client-ip=152.81.9.227; receiver=mail3-relais-sop.national.inria.fr; envelope-from="Paul.Zimmermann@inria.fr"; x-sender="postmaster@coriandre"; x-conformance=spf_only X-IronPort-AV: E=Sophos;i="6.03,164,1694728800"; d="scan'208";a="66547361" Received: from coriandre.loria.fr (HELO coriandre) ([152.81.9.227]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Sep 2023 09:24:09 +0200 Date: Thu, 21 Sep 2023 09:24:07 +0200 Message-Id: From: Paul Zimmermann To: newlib@sourceware.org CC: vincenzo.innocente@cern.ch, riemannic@gmail.com Subject: Accuracy of Mathematical Functions X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Hi, we have updated our comparison: https://members.loria.fr/PZimmermann/papers/accuracy.pdf This is a new version with updated versions of the different libraries and: * the Microsoft math library is now included (it was clearly missing) * we also added the FreeBSD math library * and we added some new C23 functions (acospi, cospi, ...) which are available in the Intel and FreeBSD math libraries This version uses the same Newlib version (4.3.0) as the previous one, thus there is no much change for Newlib. In particular the regression for tgammaf I reported on February 8 is still there: https://sourceware.org/pipermail/newlib/2023/020171.html Same for the huge error in pow reported on February 7: https://sourceware.org/pipermail/newlib/2023/020164.html Corinna, since you asked, a correctly rounded version is available here: https://gitlab.inria.fr/core-math/core-math/-/blob/master/src/binary64/pow/pow.c Best regards, Paul Zimmermann