From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,ab436e97ff76821f X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.227.67 with SMTP id ry3mr24250732pbc.8.1341911231029; Tue, 10 Jul 2012 02:07:11 -0700 (PDT) Path: l9ni11278pbj.0!nntp.google.com!news1.google.com!news.glorb.com!feeder.erje.net!news2.arglkargh.de!news.mixmin.net!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Does Ada need elemental functions to make it suitable for scientific work? Date: Tue, 10 Jul 2012 11:07:05 +0200 Organization: cbb software GmbH Message-ID: <1wqz1wr8wto96.1fwpyip6ct1z9.dlg@40tude.net> References: <18c77859-480c-41f5-bb1c-df7ad067f4f3@googlegroups.com> <637de084-0e71-4077-a1c5-fc4200cad3cf@googlegroups.com> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: FbOMkhMtVLVmu7IwBnt1tw.user.speranza.aioe.org Mime-Version: 1.0 X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Date: 2012-07-10T11:07:05+02:00 List-Id: On Tue, 10 Jul 2012 03:39:58 -0500, Nasser M. Abbasi wrote: > That is a start. But not enough by any means. All functions should be > vectorized. It is ill-defined. E.g. exp(A), where A is a matrix. Is exp(A) a matrix of exponents or exponent matrix? To me it is the second. A similar example for vectors: abs V. Is it a vector of absolute values, or maybe ||V||? -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de