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...(more precise: getting a prompt and an invariable response to any typed command). This is not exactly helpful... > > b) They were helpful, since, obviously, the usage of > memory.limit() was > not reasonable. > > c) Some more un-helpful comments on memory usage: > One of my collegeaus asked me how to compute all possible permutations > of the integers 1, 2, ..., 20 and save them to a file. Well, > I told him, > in principle he could use ... But he should think about the memory > usage, since these are 20! permutations * 20 integers to store. If he > could use jus...