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Article #539135Re: Viatron
From: John Savard
Date: Sat, 06 Jul 2013 17:30
Date: Sat, 06 Jul 2013 17:30
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2383 bytes
On Fri, 05 Jul 2013 16:57:58 -0400, Shmuel (Seymour J.) Metz <spamtrap@library.lspace.org.invalid> wrote, in part: >The analogy is bogus; matrices are not constrained to be numeric. 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. Since operations can be performed with matrices, and they behave like numbers (thus, one can define the sine of a matrix by using the Taylor series for sine, if one is so disposed) something for which operations are not defined - such as an array or a character string - can't be an element of a matrix. This is not to say that one couldn't define, say, a matrix of sets, say by calling union addition and intersection multiplication, but that's another matter. John Savard http://www.quadibloc.com/index.html
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X-Received: by 10.180.24.138 with SMTP id u10mr4427638wif.4.1373131848441; Sat, 06 Jul 2013 10:30:48 -0700 (PDT) MIME-Version: 1.0 Path: mbox-mo1.pugleaf.net!b5ni44174wiz.1!nntp.google.com!feeder1.cambriumusenet.nl!feed.tweaknews.nl!195.96.0.7.MISMATCH!newsfeed.utanet.at!newsfeed.tele2net.at!weretis.net!feeder1.news.weretis.net!news.albasani.net!eternal-september.org!feeder.eternal-september.org!mx05.eternal-september.org!.POSTED!not-for-mail From: jsavard@excxn.aNOSPAMb.cdn.invalid (John Savard) Newsgroups: alt.folklore.computers Subject: Re: Viatron Date: Sat, 06 Jul 2013 17:30:40 GMT Organization: A noiseless patient Spider Lines: 21 Message-ID: <51d85296.3583671@news.eternal-september.org> 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> Injection-Info: mx05.eternal-september.org; posting-host="2c85fb46eea8e7fa32f4461a4208f320"; logging-data="17262"; mail-complaints-to="ab...@eternal-september.org"; posting-account="U2FsdGVkX190FwgcYH8P814MCtamUzAN2l1mfkM8dCI=" X-Newsreader: Forte Free Agent 1.11/32.235 Cancel-Lock: sha1:RZW6RK/GsNGLua+5hTLcypagBBY= Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit