There was an error in ¡­

There was an error in the assignment of points to the second obligatory assignment: our original version did not allocate any points (but merely useless pointes) to part (4). We have corrected this error by mildly re-assigning points from other parts of the assignment (the total remains 100 points). Also, a sample exam is now available; please note that there are slightly more questions in this example than we would expect to ask in the actual exam. Also, observe that for most of the questions we really want quite short answers: when we say in a sentence or two, we really mean it!