From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: boffi Newsgroups: gmane.emacs.help Subject: Re: [calc] what happened to a i ??? Date: Tue, 14 Mar 2017 09:29:24 +0100 Message-ID: <87d1dkmfbv.fsf@debian.i-did-not-set--mail-host-address--so-tickle-me> References: <87h92wmg90.fsf@debian.i-did-not-set--mail-host-address--so-tickle-me> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1489480243 24703 195.159.176.226 (14 Mar 2017 08:30:43 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 14 Mar 2017 08:30:43 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Mar 14 09:30:40 2017 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cnhqk-0005HY-NH for geh-help-gnu-emacs@m.gmane.org; Tue, 14 Mar 2017 09:30:34 +0100 Original-Received: from localhost ([::1]:57077 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cnhqp-0005oU-3d for geh-help-gnu-emacs@m.gmane.org; Tue, 14 Mar 2017 04:30:39 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45722) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cnhq0-0005mA-P4 for help-gnu-emacs@gnu.org; Tue, 14 Mar 2017 04:29:49 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cnhpv-0001HY-RJ for help-gnu-emacs@gnu.org; Tue, 14 Mar 2017 04:29:48 -0400 Original-Received: from [195.159.176.226] (port=50283 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cnhpv-0001H7-Kf for help-gnu-emacs@gnu.org; Tue, 14 Mar 2017 04:29:43 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1cnhpi-0007h6-NZ for help-gnu-emacs@gnu.org; Tue, 14 Mar 2017 09:29:30 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 54 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:IGhzPU4p4G+I+NPGlDO8K3N379w= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:112562 Archived-At: boffi writes: > Do I have to set some variable to get back the old behavior of calc? I have found that calc has a *Trace* buffer mechanism... old XEmacs, old calc | 1 Integrating sin(X) sin(2 X)... | 1 Found 2:3 sin(X)^3 => 2:3 sin(X)^3 | 1 Integral of sin(X) sin(2 X) is 2:3 sin(X)^3 | | | Begin rewriting | 2:3 sin(X)^3 | | (Phase 1) | | Done rewriting: | 2:3 sin(X)^3 Emacs 25, its calc | 1 Integrating sin(X) sin(2 X)... | 1 Found cancelled => cancelled | 1 Simplifying... no change | 1 Integrating by substitution, u = 2 X | 2 Integrating sin(X / 2) sin(X) / 2... | 2 Found cancelled => cancelled | 2 Simplifying... simplified | 3 Integrating sin(X) sin(X / 2) / 2... | 3 Found cancelled => cancelled | 4 Integrating sin(X) sin(X / 2)... | 4 Found cancelled => cancelled | 4 Integral of sin(X) sin(X / 2) is nil | 3 Integral of sin(X) sin(X / 2) / 2 is nil | 2 Integral of sin(X / 2) sin(X) / 2 is nil | 2 Integrating 1:2 sin(X / 2) sin(X)... | 2 Found cancelled => cancelled | 2 Simplifying... simplified | 3 Integrating sin(X) sin(X / 2) / 2... | 3 Found cancelled => cancelled | 4 Integrating sin(X) sin(X / 2)... | 4 Found cancelled => cancelled | 4 Integral of sin(X) sin(X / 2) is nil | 3 Integral of sin(X) sin(X / 2) / 2 is nil | 2 Integral of 1:2 sin(X / 2) sin(X) is nil | 1 Integrating by substitution, u = sin(X) it seems that the old calc has more canned results under its belt, but of course I may be wrong... yours g