From: utzoo!decvax!harpo!zeppo!wheps!eagle!mhuxt!rwhaas Newsgroups: net.math Title: Re: Questions about pizza answer Article-I.D.: mhuxt.564 Posted: Wed Jun 23 14:35:42 1982 Received: Sun Jun 27 05:13:24 1982 References: populi.215 If your problem is simply to find the n roots of unity, i.e. the solution to x^n - 1 = 0, then note that x^n=1=exp(2*pi*i) so that all the roots are of the form root[k] = cos(2*pi*k/n) + i*sin(2*pi*k/n), k=0,...,n-1 . As to construction of these roots, the previous articles apply. Roy Haas Bell Labs, Indian Hill