Andik: I think one of the neat things about this ler is all that mat you should have learned in school, o unfers university. It's not the actual operations that you spend so long doing it. Andik: Is it being able to differentiate a whole bunch of quadrotics really fast? Or is it knowing which quadrotic you need to differentiate? Right? The next topic is on to the next course, and i'll introduce this one to discreet simulation.