Re: summation help



On 11-04-2005 15:55, jimbo wrote:

I am in the process of doing a proof, but I've hit a snag.

I currently have the following summation:

the summation of ( (N-L+1)(L-1) ) from L = 2 to N.

I am trying to reduce this to some form something like:

the summation of (N*L-L^2) from L=1 to N-1...

Does anyone have any suggestions?

I do: read my reply to that same question.

Best regards,

Jose Carlos Santos
.