nag_zgbequ (f07btc) Example Program Data
   4             1                     2                   : n, kl and ku
 (-1.65, 2.26) (-2.05e-10,-8.50e-11) ( 9.70e-01,-2.84e+00)
 ( 0.00, 6.30) (-1.48e-10,-1.75e-10) (-3.99e+00, 4.01e+00)
                                     ( 0.59e+00,-0.48e+00)
               (-7.70e-01, 2.83e+00) (-1.06e+10, 1.94e+10)
                                     ( 3.33e+10,-1.04e+10)
                                     ( 4.48e+00,-1.09e+00)
                                     (-0.46e+00,-1.72e+00) : matrix A