dlaed6(3) on Linux
The text 164a4d41eb7a, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
compute the positive or negative root (closest to the origin) of z(1) z(2) z(3) f(x) = rho + --------- + ---------- + --------- d(1)-x d(2)-x d(3)-x It is assumed that if ORGATI = .true