Fast Fourier Transform Algorithm

Implementation of FFT without using matlab built-in function of fft.

This program is open source code of fast Fourier transform in matlab.
Where y is the input argument and p is the normalized size of the input. Let
y = [1 2 3 4 ];
x= length(y);
m= log2(x);
p= ceil(m);
To call the function use
ft2(y,p);