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Thread: a sum problem

  1. #1
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    a sum problem

    I encounter a problem and i try to solve it for hours, still i could not solve it.

    $\displaystyle

    \sum_{k=1}^n \log^s{k}
    $

    what is the result? I really need help.
    Last edited by shiningstarpxx; Sep 4th 2009 at 06:28 PM.
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  2. #2
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    Quote Originally Posted by shiningstarpxx View Post
    I encounter a problem and i try to solve it for hours, still i could not solve it.

    $\displaystyle sum_{k=1}^{n} lg^{s}k$

    what is the result? I really need help.
    What does $\displaystyle sum_{k=1}^{n} lg^{s}k$ mean?
    Can't help if we don't what things mean.
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  3. #3
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    Quote Originally Posted by Plato View Post
    What does $\displaystyle sum_{k=1}^{n} lg^{s}k$ mean?
    Can't help if we don't what things mean.


    Sorry, My latex is weak. the formula should be,

    $\displaystyle \Sigma_{k=1}^{n} lg^{s}k$ (s is a constant and s>0)
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  4. #4
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    Quote Originally Posted by shiningstarpxx View Post
    I encounter a problem and i try to solve it for hours, still i could not solve it.

    $\displaystyle sum_{k=1}^{n} lg^{s}k$

    what is the result? I really need help.
    Is this is what you intended?

    $\displaystyle \sigma_{k=1}^{n} lg^{s}k$

    or this?

    $\displaystyle g^sl \sum_{k=1}^{n}k$

    .
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  5. #5
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    Quote Originally Posted by shiningstarpxx View Post
    Sorry, My latex is weak. the formula should be,

    $\displaystyle \Sigma_{k=1}^{n} lg^{s}k$ (s is a constant and s>0)
    $\displaystyle \sum_{k=1}^n \log_s{k}$ ... maybe?

    $\displaystyle \log_s{1}+\log_s{2}+\log_s{3}+ ... + \log_s{n} = \log_s(n!)$
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