Fourier Transform, Fft, Fast Fourier Transform, Algorithms, Mathematics.
points.reshape((n, 1)) e = np.exp(-2j * np.pi * freq * points / n) return abs(np.dot(e, x)) f = dft(x) On plotting the frequencies and their corresponding amplitudes we obtain the following plot: If we look at the frequencies with the highest amplitudes from the DFT, we will see that at frequencies