If you need to evenly distribute numbers between a lower and an upper boundary then you should use the range component. However, if you need to control the step size or interval between your numbers then generating a series is the best method.
It all depends on your chosen inputs. I could use both components to create a list of numbers from 0 to 10 with every decimal represented i.e. 0, 0.1, 0.2, 0.3.......9.9, 10.
The Range component I would plug 0 and 10 into an interval component and then plug this into the D of the Range. then set the number of steps to 100.
For the Series component I would start at 0, step by 0.1 and have 101 numbers in the series.
Thanks very much for the file as well..makes much more sense, and the interval is quite similar if I am not mistaken..you give two values and it provides the numeric range between those two values without specifying the inbetween paths/steps...