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February 9th, 2019, 09:12 AM   #1
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Expression problem

Does this make sense ?
$\displaystyle n=\sum_{k=1}^{n} \frac{k}{k}$ .
It is same as 1+1+1+... , n-times but the expression inside the sum is 1 .
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February 9th, 2019, 10:39 AM   #2
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I don't see anything wrong with that other than it should be mentioned that $k \neq 0$
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February 9th, 2019, 02:31 PM   #3
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Possibly $n \geqslant 1$ and $n \in \mathbb{N}$ were also intended.
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February 9th, 2019, 02:42 PM   #4
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Quote:
Originally Posted by romsek View Post
I don't see anything wrong with that other than it should be mentioned that $k \neq 0$
actually, duh, that's implied by the series indices
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