NAG Library Manual, Mark 30.2
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NAG CL Interface Introduction
Example description

nag_sum_fft_qtrsine (c06rgc) 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 sine transforms

     0.7304    0.2078    0.1150    0.2577   -0.2869   -0.0815
     0.9274   -0.1152    0.2532    0.2883   -0.0026   -0.0635
     0.6268    0.3547    0.0760    0.3078    0.4987   -0.0507
 
 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