nag_sum_fft_qtrcosine (c06rhc) Example Program Results
 
 Original data values

     0.3854    0.6772    0.1138    0.6751    0.6362    0.1424
     0.5417    0.2983    0.1181    0.7255    0.8638    0.8723
     0.9172    0.0644    0.6037    0.6430    0.0428    0.4815
 
 Discrete quarter-wave Fourier cosine transforms

     0.7257   -0.2216    0.1011    0.2355   -0.1406   -0.2282
     0.7479   -0.6172    0.4112    0.0791    0.1331   -0.0906
     0.6713   -0.1363   -0.0064   -0.0285    0.4758    0.1475
 
 Original data as restored by inverse transform

     0.3854    0.6772    0.1138    0.6751    0.6362    0.1424
     0.5417    0.2983    0.1181    0.7255    0.8638    0.8723
     0.9172    0.0644    0.6037    0.6430    0.0428    0.4815