nag_sum_fft_cosine (c06rfc) Example Program Results
 
 Original data values

     0.3854    0.6772    0.1138    0.6751    0.6362    0.1424    0.9562
     0.5417    0.2983    0.1181    0.7255    0.8638    0.8723    0.4936
     0.9172    0.0644    0.6037    0.6430    0.0428    0.4815    0.2057
 
 Discrete Fourier cosine transforms

     1.6833   -0.0482    0.0176    0.1368    0.3240   -0.5830   -0.0427
     1.9605   -0.4884   -0.0655    0.4444    0.0964    0.0856   -0.2289
     1.3838    0.1588   -0.0761   -0.1184    0.3512    0.5759    0.0110
 
 Original data as restored by inverse transform

     0.3854    0.6772    0.1138    0.6751    0.6362    0.1424    0.9562
     0.5417    0.2983    0.1181    0.7255    0.8638    0.8723    0.4936
     0.9172    0.0644    0.6037    0.6430    0.0428    0.4815    0.2057