📄️ Discrete Fourier Transform
There are actually two types of discrete time fourier transform, discrete fourier transform (DFT) and discrete time fourier transform (DTFT).
📄️ Discrete Time Fourier Transform
The last chapter focused on the discrete periodic signal. When the discrete signal is not periodic and spans infinitely, just like what we did, we need to push the DFT to a limit for DTFT.