C02AKF Example Program Results

  Roots of cubic equation             Error estimates
                                    (machine-dependent)

  z =   1.0000E+00 +0.0000E+00*i          1.0E-15
  z =  -2.0000E+00 +3.0000E+00*i          1.0E-15
  z =  -2.0000E+00 -3.0000E+00*i          1.0E-15