- #1

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^{n}

_{k=1}(2

^{2}). Thats just a recent example. I can't remember the expansion form any sort of summation really except when it has a defined upper bound.

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- Thread starter psycho2499
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- #2

Dick

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The upper bound is n and the lower bound is 1 isn't it? Looks to me like 4*n.

- #3

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sorry i meant to say 2^n for the eq.

- #4

Dick

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Then isn't it n*2^n, or did you mean 2^k? Then it's just a finite geometric sum.

- #5

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this is what i get for only half paying attention to what i type. damn finals. 2^k, Sorry bout that

- #6

Dick

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