Re: [R] finding roots of a polynomial

From: Prof Brian Ripley <ripley_at_stats.ox.ac.uk>
Date: Mon 17 Oct 2005 - 06:26:13 EST

?polyroot, and watch that x^4 appears to be missing.

On Fri, 7 Oct 2005, Vumani Dlamini wrote:

> Dear listers,
> I am trying to find the root of a polynomial of the form,
> a+bx+cx^2+dx^3+ex^5+...=0
> where a,b,c,d,e are known.
> I have looked at "quadprog" without any success.

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Received on Mon Oct 17 06:43:47 2005

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