[R] finding roots of a polynomial

[Prof Brian Ripley]

?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 at 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