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Question: Kronecker Delta in a Sum.

Question:Kronecker Delta in a Sum.

H-R 155 Maple 18
sum summation
September 29 2014
2

Consider the following sum:


We know that if k is between 1 and N, the result will be



and otherwise the sum is zero.

How can I tell maple to compute this sum in each case without giving numerical values to the parameters "N" and "k"?

Thanks. :)
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