[Jprogramming] Cool roots

[Boyko Bantchev]

On 13 December 2012 03:23, Bo Jacoby <bojacoby at yahoo.dk> wrote:
> I reinvented the Durand-Kerner method ( http://en.wikipedia.org/wiki/Durand-Kerner_method ) in 1992. I think it cool. I don't know if it is better or worse than   p.  .

Just for the record.  The so-called Durand–Kerner method was
independently discovered by several authors in the 1960s.  It
is based on a formula of K.Weierstrass, although he did not use
it to approximate roots.  Kiril Dochev was the first (1962) to
establish a sufficient condition for the convergence of the
method and to prove that the convergence is quadratic.