The following theorem looks like the corresponding theorem for sequences (v.s. 7.1). Recall that ``undeterminate'' means that there is no automatic conclusion in such a case, and that everything can happen, finite limit, infinite limit, no limit at all, etc.
|0||0||or no limit||if|
We give now examples of the ``undeterminate'' cases, first of all in order to show why they are call undeterminate, then in order to show how they can be worked out.