Fourier Transform, Fft, Fast Fourier Transform, Algorithms, Mathematics.
with time units of 5 minutes, this is because in the DFT formula it is assumed that time steps are 0,1,2,… etc. In case we desire to use a different time unit, we need to scale the formula accordingly. Assuming that instead of t=1 we use t=H units, then the formula is updated to be: If we look at