Post #2114079

@shana I think the reverse take is more powerful: some loops can be avoided if you have a closed mathematical form for them. And as someone else noted when quoting this post, for loops imply an ordering, the mathematical operation does not. Plus, loops are just one form: generators are another, and the fact that \[\sum_{i=0}^{m} f(i) = \sum_{i=0}^{n-1} f(i) + f(n) + \sum_{i=n+1}^{m} f(i) \] means that generators are really another option.