Number of iterations:  37

 Vertices of final 3-D simplex and
 function values at the vertices:

   I      X(I)        Y(I)        Z(I)      FUNCTION

   1    0.490677    0.605329    0.717564   -0.400000
   2    0.474908    0.597644    0.687566   -0.400000
   3    0.530209    0.590894    0.684829   -0.400000
   4    0.507350    0.633569    0.698854   -0.400000

 True minimum is at (0.5,0.6,0.7)