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From: jfh@browngr.UUCP (John "Spike" Hughes)
Newsgroups: net.math,net.wanted
Subject: Re: real roots of polynomial
Message-ID: <1846@browngr.UUCP>
Date: Sun, 10-Feb-85 21:52:26 EST
Article-I.D.: browngr.1846
Posted: Sun Feb 10 21:52:26 1985
Date-Received: Mon, 18-Feb-85 04:45:29 EST
References: brl-tgr.7942
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Xref: watmath net.math:1830 net.wanted:5812

Why not use the quartic formula (which is a lot like the quadratic formula,
only more complicated)? It can be found in most books on the theory of equations,
and in Jacobson's (abstract) Algebra book, I think. It may even be in the
handbook of mathematical tables, published by the chemical rubber company
(CRC) which is on the refernce shelf in most libraries. If you want the
'C' code for it, write to me and I'll mail it to you.
   -jfh{