This is so easy I am sure...but I have no idea how to look it up. I want to execute a loop from i = 1 to N During each iteration I want to prompt the user for the i-th input. Let's say, I want to ask for x1, x2, x3, ..., xN. I should be able to write something like: Code (Text): for i:N x(i) = input(' Enter value of x' & i) next But the '&' does not seem to be the proper way to do this..... Anyone know this one? Thanks!