From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.bugs Subject: bug#41223: 28.0.50; Calc gives wrong determinant for some matrices with symbolic variables Date: Thu, 14 May 2020 11:56:47 +0200 Message-ID: <2CF164B5-2BB9-4740-BF86-FA9CA721672D@acm.org> References: <7A33094E-BD4C-45DE-A57D-F23D50CFC6B4@acm.org> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.14\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="120617"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 41223@debbugs.gnu.org To: Mauro Aranda Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu May 14 11:58:11 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jZAd0-000VGG-9d for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 14 May 2020 11:58:10 +0200 Original-Received: from localhost ([::1]:35802 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jZAcy-0007ie-W2 for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 14 May 2020 05:58:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33674) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jZAcs-0007hQ-Hq for bug-gnu-emacs@gnu.org; Thu, 14 May 2020 05:58:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:48740) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jZAcs-0003Qa-8b for bug-gnu-emacs@gnu.org; Thu, 14 May 2020 05:58:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jZAcs-0000gq-7k for bug-gnu-emacs@gnu.org; Thu, 14 May 2020 05:58:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 14 May 2020 09:58:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41223 X-GNU-PR-Package: emacs Original-Received: via spool by 41223-submit@debbugs.gnu.org id=B41223.15894502222521 (code B ref 41223); Thu, 14 May 2020 09:58:02 +0000 Original-Received: (at 41223) by debbugs.gnu.org; 14 May 2020 09:57:02 +0000 Original-Received: from localhost ([127.0.0.1]:60286 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jZAbt-0000eZ-MA for submit@debbugs.gnu.org; Thu, 14 May 2020 05:57:01 -0400 Original-Received: from mail1444c50.megamailservers.eu ([91.136.14.44]:41274 helo=mail264c50.megamailservers.eu) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jZAbq-0000e9-F8 for 41223@debbugs.gnu.org; Thu, 14 May 2020 05:56:59 -0400 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1589450210; bh=q1DDzLY107fKdU15vJYhOP/Wfufb6dwkzgYCuEidJTc=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=NZ2IqTidB0/Tvl65EbDu79sL74CJXcJ7Wn8lOkTQiC6O8VbMEkCVpKmUbbxVUW4KY 8ZuTBaAOJCIKd72g8lolhKyanjg8fNzDdoCaa8opl9XJtLmLLpQn/Tf/bKXQrG5l+3 i/Sv9u6upR1V0WEozcq0ZxtXs37QeBTDsyPIC9eU= Feedback-ID: mattiase@acm.or Original-Received: from stanniol.lan (c-4e4ae655.032-75-73746f71.bbcust.telenor.se [85.230.74.78]) (authenticated bits=0) by mail264c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 04E9umoP011065; Thu, 14 May 2020 09:56:49 +0000 In-Reply-To: <7A33094E-BD4C-45DE-A57D-F23D50CFC6B4@acm.org> X-Mailer: Apple Mail (2.3445.104.14) X-CTCH-RefID: str=0001.0A782F25.5EBD1576.0082, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=PPNxBsiC c=1 sm=1 tr=0 a=klNLuyVZdLUgl+K5Uafb2A==:117 a=klNLuyVZdLUgl+K5Uafb2A==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=XclehxbK_wuC0LPE3NcA:9 a=CjuIK1q_8ugA:10 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:180197 Archived-At: By the way, the change also fixes inversion of matrices such as the one = in your example. Previously, Calc would (erroneously) complain that the = matrix was singular.