Fourier Transform, Fft, Fast Fourier Transform, Algorithms, Mathematics.
are using fourier transform on discrete points, it is known as the Discrete Fourier Transform or DFT. The values F(v) evaluated at v = 0, 1, 2…. and so on will give an estimate of the contribution of the frequency v to the time series f(t). How does obtaining the frequencies present in f(t) helps