Article View: alt.folklore.computers
Article #539136Re: Viatron
From: Shmuel Metz
Date: Sun, 07 Jul 2013 03:54
Date: Sun, 07 Jul 2013 03:54
31 lines
3045 bytes
3045 bytes
In <51d85296...@news.eternal-september.org>, on 07/06/2013 at 05:30 PM, jsavard@excxn.aNOSPAMb.cdn.invalid (John Savard) said: >Hmm. Matrices, as I'm thinking about them, are a next step up from >things like complex numbers and quaternions. They are no longer a >division algebra, since not every matrix has an inverse. Well, the next step after quaternions is Cayley numbers (Octonions), which are not associative. >Since operations can be performed with matrices, Some operations can be performed with some matrices. >and they behave like numbers Not even close, e.g., any nonzero number is invertible, the product of two arbitrary numbers is well defined.. >one can define the sine of a matrix Only if it is a square numeric matrix. Is a 2x3 matrix a matrix? According to every text that I've seen it is. -- Shmuel (Seymour J.) Metz, SysProg and JOAT <http://patriot.net/~shmuel> Unsolicited bulk E-mail subject to legal action. I reserve the right to publicly post or ridicule any abusive E-mail. Reply to domain Patriot dot net user shmuel+news to contact me. Do not reply to spam...@library.lspace.org
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X-Received: by 10.66.144.72 with SMTP id sk8mr2018866pab.16.1373199903070; Sun, 07 Jul 2013 05:25:03 -0700 (PDT) MIME-Version: 1.0 Path: mbox-mo1.pugleaf.net!b2ni57427pby.1!nntp.google.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.posted.lerostechnologies!news.posted.lerostechnologies.POSTED!not-for-mail NNTP-Posting-Date: Sun, 07 Jul 2013 07:25:00 -0500 Newsgroups: alt.folklore.computers From: Shmuel (Seymour J.) Metz <spamtrap@library.lspace.org.invalid> Date: Sat, 06 Jul 2013 23:54:33 -0400 Subject: Re: Viatron References: <kr2794$e1$1@dont-email.me> <79aa41d9-ebf2-4eb4-a35e-3da34be6de04@googlegroups.com> <proto-23594F.22023803072013@news.panix.com> <d7mdnQ27jod5rkjMnZ2dnUVZ8iSdnZ2d@bt.com> <51d55292.2053000@news.eternal-september.org> <51d69f39$5$fuzhry+tra$mr2ice@news.patriot.net> <51d7109f.2069062@news.eternal-september.org> <51d73356$12$fuzhry+tra$mr2ice@news.patriot.net> <51d85296.3583671@news.eternal-september.org> Mail-Copies-To: nobody Organization: Atid/2 X-Treme: C&C,DWS X-WebTV-Stationery: Standard; BGColor=black; TextColor=black Message-ID: <51d8e679$6$fuzhry+tra$mr2ice@news.patriot.net> X-Newsreader: MR/2 Internet Cruiser Edition for OS/2 v3.00.11.18 BETA/60 Lines: 32 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 69.72.27.71 X-Trace: sv3-6q5r/JfPisrMrJYQTHimLBq/4q7ZDR4npleKwKyGnVN8MQ5z89ahd2yztERyvWBXpjzWk56h4Ughdqw!Uvvudgi90C73YZHi2skgdXPggpawtXRo8Yo01bH+a/dyYybNdEZNvtE1HyT/Lo6n2iqhGOPEy++1!9my1HDIWukFndmTFPRXVJHkk2Vu2qQ== X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 Bytes: 2778 X-Original-Bytes: 2717 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit