nag_fft_multiple_qtr_cosine (c06hdc) 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