Recent content by Ediliter

I have been trying to figure out a formula for the sum of combinations. For example: \sumnk=0(\frac{n}{k}) = 2n But what if you want to sum from any arbitrary k, like 4? I've tried looking at Pascal's triangle for nice values of n and k, but haven't been able to see a pattern. I would...

I have been having great trouble understanding limit points and came across this thread. I apologize in advance for reviving an old thread. The discussion above is very helpful, but I feel I still don't understand the concept completely. Since I don't know how else to phrase my questions, I...