% The multiplicative constants for the 5 point FFT I = sqrt(-1); u = [ -1.250000000000000 -0.559016994374947 -1.538841768587627*I -0.363271264002681*I 0.951056516295154*I ]; % The input permutation for the 5 point FFT ip = [ 1 2 3 5 4 ]; % The output permutation for the 5 point FFT op = [ 1 5 2 4 3 ];