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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,1ce0ce3b2db00698 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.241.162 with SMTP id wj2mr10925487pbc.2.1340780306884; Tue, 26 Jun 2012 23:58:26 -0700 (PDT) Path: l9ni24835pbj.0!nntp.google.com!news1.google.com!news.glorb.com!feeder.erje.net!newsfeed.straub-nv.de!nuzba.szn.dk!news.jacob-sparre.dk!munin.jacob-sparre.dk!pnx.dk!.POSTED!not-for-mail From: Jacob Sparre Andersen Newsgroups: comp.lang.ada Subject: Re: how to print an array range? Date: Wed, 27 Jun 2012 08:58:24 +0200 Organization: Jacob Sparre Andersen Research & Innovation Message-ID: <874npx5jhr.fsf@adaheads.sparre-andersen.dk> References: <4fe9bf33$0$6566$9b4e6d93@newsspool4.arcor-online.net> <33dku79r14uuvmlgpodg9ri7prnq9v5f94@invalid.netcom.com> NNTP-Posting-Host: 94.191.217.9.bredband.3.dk Mime-Version: 1.0 X-Trace: munin.nbi.dk 1340780305 10432 94.191.217.9 (27 Jun 2012 06:58:25 GMT) X-Complaints-To: news@jacob-sparre.dk NNTP-Posting-Date: Wed, 27 Jun 2012 06:58:25 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) Cancel-Lock: sha1:DcZVUkvEMosA5x7qCzWLWThlRNY= Content-Type: text/plain; charset=us-ascii Date: 2012-06-27T08:58:24+02:00 List-Id: Jeffrey Carter wrote: > The type in question, Real_Matrix, is intended to model mathematical > matrices, not to be a general-purpose array. Yes. But that shouldn't keep us from having a better solution than the conventional one. Allowing matrices with indexes symmetric around 0 means that you can solve some problems with out having to keep track of $M_{i-2,j+2}$ (or was it $j-2$) as we have to in symbolic mathematics. > Of course, I'm not a mathematician, so I might be mistaken. As a mathematician (or maybe it is really as a physicist), I'm quite happy with the extra expressiveness of the Ada matrix packages. Greetings, Jacob -- "Sleep is just a cheap substitute for coffee"