The Branin, or Branin-Hoo, function has three global minima. The recommended values of a, b, c, r, s and t are: a = 1, b = 5.1 ⁄ (4π 2), c = 5 ⁄ π, r = 6, s = 10 and t = 1 ⁄ (8π). This rescaled form ...

Of all the issues facing a manager as he thinks about the form of his organization, one of the thorniest is the question of whether to group activities primarily by product or by function.