nag_lapacklin_zgbsv (f07bnc) Example Program Data
    4              1               2                            : n, kl, ku
    1                                                           : nrhs
 ( -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) : matrix A
 ( -1.06, 21.50)
 (-22.72,-53.90)
 ( 28.24,-38.60)
 (-34.56, 16.73)                                                : vector b