Using Matlab coding please primarily T3.2-2

might have multiple peaks, multiple valleys, and "mountain passes" called saddle points that can fool a minimization technique. Different initial guesses for the solution vector can cause the minimization technique to nd dif ferent valleys and thus report different re- sults. We can use the surface-plotting functions covered in Chapter 5 to look for multiple valleys, or we can use a large number of initial values for d and 0, say, over the physically realistic ranges 0