From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/8288 Path: news.gmane.org!not-for-mail From: "Fred E.J. Linton" Newsgroups: gmane.science.mathematics.categories Subject: YT at Seoul ICM 2014 Date: Wed, 06 Aug 2014 02:52:21 -0400 Message-ID: Reply-To: "Fred E.J. Linton" NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1407372794 28879 80.91.229.3 (7 Aug 2014 00:53:14 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 7 Aug 2014 00:53:14 +0000 (UTC) To: "categories" Original-X-From: majordomo@mlist.mta.ca Thu Aug 07 02:53:09 2014 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtp3.mta.ca ([138.73.1.186]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XFBx2-0000fu-K9 for gsmc-categories@m.gmane.org; Thu, 07 Aug 2014 02:53:04 +0200 Original-Received: from mlist.mta.ca ([138.73.1.63]:50638) by smtp3.mta.ca with esmtp (Exim 4.80) (envelope-from ) id 1XFBwU-00013S-RC; Wed, 06 Aug 2014 21:52:30 -0300 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1XFBwV-0006Vm-7G for categories-list@mlist.mta.ca; Wed, 06 Aug 2014 21:52:31 -0300 Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:8288 Archived-At: It surprises me as much as anyone, but the price of eschewing LaTeX seems to be to wind up learning a smattering of HTML ... and of PS (!). Or so I must infer from the nature of the talk I'm giving either to geometers or to mathematical pedagogues at the upcoming ICM -- entitled "A piecewise cubic PostScript trefoil", it offers a piecewise polynomial = parametrization of the trefoil knot -- a continuously differentiable = stitching together of six rotated and reflected copies of one basic = pattern-curve arising as part of the graph of a well-chosen cubic = polynomial that any basic linear algebra student can come up with. The cute trick is that you don't need any fluency in linear algebra technique at all -- PostScript will do it all for you -- solve your problem, plot your cubic curve, and rotate and reflect it, as much as is required. For a five-sheet comix-spread PDF (caution: 2+ MB) of the talk slides, gr= ab = http://fej.math.wes.tlvp.net/ICM-2014/SeoulSlideComics.pdf . And enjoy, with a nice, cool, mint julep :-) . -- Fred [For admin and other information see: http://www.mta.ca/~cat-dist/ ]