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From: ashby@uiucdcsp.UUCP
Newsgroups: net.math
Subject: Re: real roots of polynomial
Message-ID: <9600006@uiucdcsp.UUCP>
Date: Tue, 19-Feb-85 16:08:00 EST
Article-I.D.: uiucdcsp.9600006
Posted: Tue Feb 19 16:08:00 1985
Date-Received: Fri, 22-Feb-85 08:28:45 EST
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Nf-From: uiucdcsp!ashby    Feb 19 15:08:00 1985


EISPACK is an easy-to-use and, I believe, efficient way of 
computing the egvals of a "moderately sized" matrix.  Surely
a 4x4 matrix is no problem.  However, using the CRC quartic
formulae may cause trouble.