Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!elroy.jpl.nasa.gov!decwrl!pa.dec.com!shlump.nac.dec.com!jareth.enet.dec.com!edp From: edp@jareth.enet.dec.com (Always mount a scratch monkey.) Newsgroups: comp.sys.handhelds Subject: Re: Finding roots of Tertiary and above equations? Message-ID: <22116@shlump.nac.dec.com> Date: 17 Apr 91 15:15:46 GMT Sender: newsdaemon@shlump.nac.dec.com Organization: Digital Equipment Corporation Lines: 16 In article <2804f002:2682.5comp.sys.handhelds;1@hpcvbbs.UUCP>, akcs.ed@hpcvbbs.UUCP (Edwin S. Linderman) writes... >Actually, you folks are a bit mistaken. You CAN (Using a formula) get >5th degree roots. It is more than 3 pages long, typed, and there is also >a proof that there is no 6th degree formula. The general solution for quintic polynomials uses elliptic modular functions; the issue of discussion was algebraic solutions -- that is, solutions using only finite numbers of additions, subtractions, multiplication, divisions, raising to powers, and extractions of roots. -- edp (Eric Postpischil) "Always mount a scratch monkey." edp@jareth.enet.dec.com