The second episode in my Fourier video series is out now here:
What is a ‘discrete’ or ‘negative’ frequency? Do we really need negative frequencies for the DFT? What exactly is the frequency range for a discrete Fourier transform and how many frequencies does a DFT contain? In this video I answer those questions.
CONTENTS
01:15 Discrete frequencies
03:19 The unit of frequency in the DFT (Cyclicity)
07:33 Negative frequencies (Even and Odd functions)
19:27 The range of frequencies in the DFT (0 to Nyquist)
32:41 Conclusions