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From: CMH117%PSUVM.BITNET@VMA.CC.CMU.EDU (Charles Hannum)
Newsgroups: comp.graphics
Subject: Re: Solution to quartic eqn?
Message-ID: <Added.wZKFF0K00Ui30n4E4T@andrew.cmu.edu>
Date: 9 Nov 89 06:07:00 GMT
Organization: Carnegie Mellon, Pittsburgh, PA
Lines: 2
In-Reply-To: nl0s+ AT andrew.cmu.edu -- Thu,  9 Nov 89 01:02:49 -0500 (EST)

I didn't ask the question, but thanks for your input.  However, Ferrari's
theorem yields a fast and very accurate answer.