Princess Sofia (Sophie in Sweden) of Nassau, (July 9, 1836 - December 30, 1913), was the daughter of George William Augustus Henry, Duke of Nassau-Weilburg and his wife Pauline Friederica Marie Princess of Württemberg.
... complex conjugates of each other. (In this case, the parabola does not intersect the x-axis at all.)
Note that when computing roots numerically, the usual form of the ...