nag_zgbcon (f07buc) Example Program Data
  4  1  2                                                :Values of N, KL and KU
 (-1.65, 2.26) (-2.05,-0.85) ( 0.97,-2.84)
 ( 0.00, 6.30) (-1.48,-1.75) (-3.99, 4.01) ( 0.59,-0.48)
               (-0.77, 2.83) (-1.06, 1.94) ( 3.33,-1.04)
                             ( 4.48,-1.09) (-0.46,-1.72)  :End of matrix A