NAG Library Manual, Mark 27.2
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NAG FL Interface Introduction
Example description

 C06FBF Example Program Results

 Original sequence and corresponding complex sequence

          Data           Real      Imag

     0   0.34907        0.34907   0.00000
     1   0.54890        0.54890   1.51370
     2   0.74776        0.74776   1.32850
     3   0.94459        0.94459   1.13850
     4   1.13850        0.94459  -1.13850
     5   1.32850        0.74776  -1.32850
     6   1.51370        0.54890  -1.51370

 Components of discrete Fourier transform

     0   1.82616
     1   1.86862
     2  -0.01750
     3   0.50200
     4  -0.59873
     5  -0.03144
     6  -2.62557

 Original sequence as restored by inverse transform

         Original  Restored

     0   0.34907   0.34907
     1   0.54890   0.54890
     2   0.74776   0.74776
     3   0.94459   0.94459
     4   1.13850   1.13850
     5   1.32850   1.32850
     6   1.51370   1.51370