% The multiplicative constants for the 7 point FFT

I = sqrt(-1);
u = [
       -1.166666666666667
        0.440958551844098*I
       -0.678447933946105
        0.846010735815048
       -0.055854267289648
       -1.408811651299382*I
       -0.193096429713794*I
        0.533969360337725*I
];


% The input permutation for the 7 point FFT

ip = [
   1
   2
   5
   3
   7
   4
   6
];


% The output permutation for the 7 point FFT

op = [
   1
   7
   6
   2
   5
   3
   4
];