length of grad assignments I'm taking my first grad courses this semester (I'm an undergrad), group theory and quantum mechanics, and grad quantum mechanics. so far neither is conceptual challenging and the former is pretty easy as I've taken abstract algebra before, however the graduate quantum course is eating my time. So far I've misjudged the time requirement for the assignments and failed to finish the first two, its not any conceptual problem, as I can easily set up the equations, the problem is the time it takes to solve them. So far i'd estimate that each assignmnt if done propoerly would take 20 hours or so of computation. Is this normal for a grad course such as quantum mechanics? or is this professor fond of giving out extra work? also for reference the last assignment involved computing the transmission and reflection coefficiants of a square potential "hill" for both the scattering and the bound states, approximating the transmission coefficient for the case E<<V creating a general formula for approximating any potential "hill" and then finding the transmission and reflection coefficients of the delta potential with strength g.