C02ALF Example Program Results

  Roots of quartic equation           Error estimates
                                    (machine-dependent)

  z =   2.0000E+00 +0.0000E+00*i          8.9E-16
  z =  -2.0000E+00 +0.0000E+00*i          1.1E-15
  z =  -1.0000E+00 +3.0000E+00*i          1.0E-15
  z =  -1.0000E+00 -3.0000E+00*i          1.0E-15