1𝐷𝑎𝑦𝐴𝑓𝑡𝑒𝑟𝐴𝑛𝑜𝑡ℎ𝑒𝑟 (mark40511)

The full beauty of the subject of generating functions emerges only from tuning in on both channels: the discrete and the continuous. See how they make the solution of difference equations into child's play. Then see how the theory of functions of a complex variable gives, virtually by inspection, the approximate size of the solution. The interplay between the two channels is vitally important for the appreciation of the music.