NAG Library Manual, Mark 30.1
Interfaces:  FL   CL   CPP   AD 

NAG FL Interface Introduction
Example description

 C02ALF Example Program Results

  Roots of quartic equation           Error estimates
                                    (machine-dependent)

  z =   2.0000E+00 +0.0000E+00*i          1.2E-15
  z =  -2.0000E+00 +0.0000E+00*i          1.1E-15
  z =  -1.0000E+00 +3.0000E+00*i          1.1E-15
  z =  -1.0000E+00 -3.0000E+00*i          1.1E-15