NAG Library Manual, Mark 31
Interfaces:  FL   CL   CPP   AD 
NAG FL Interface Introduction
Example description

 C06RFF 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