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