2008-03-25

Today's nonsense
- Homework due tomorrow (same with physics).

There's lots of "find the interval of convergence" and "find the radius of convergence". You set it up with the ratio test, or the lim as n->inf of the absolute value of (a_{_(n+1)} over a_{_n}). Your answer will have three possible things: it will either == 1, and the ratio test is inconclusive. If it is greater than 1, then it is going to diverge which means your radius of convergence is 0, it will only converge at that point at which it is centered (@ R=0), or it will be less than one, and then it will converge and your radius will be dependent on whatever the numbers are there in the problem.