# a sum problem

• Sep 4th 2009, 04:47 AM
shiningstarpxx
a sum problem
I encounter a problem and i try to solve it for hours, still i could not solve it.

$

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

what is the result? I really need help.
• Sep 4th 2009, 07:29 AM
Plato
Quote:

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

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

what is the result? I really need help.

What does $sum_{k=1}^{n} lg^{s}k$ mean?
Can't help if we don't what things mean.
• Sep 4th 2009, 05:58 PM
shiningstarpxx
Quote:

Originally Posted by Plato
What does $sum_{k=1}^{n} lg^{s}k$ mean?
Can't help if we don't what things mean.

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

$\Sigma_{k=1}^{n} lg^{s}k$ (s is a constant and s>0)
• Sep 4th 2009, 06:14 PM
aidan
Quote:

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

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

what is the result? I really need help.

Is this is what you intended?

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

or this?

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

.
• Sep 4th 2009, 06:22 PM
skeeter
Quote:

Originally Posted by shiningstarpxx
Sorry, My latex is weak. the formula should be,

$\Sigma_{k=1}^{n} lg^{s}k$ (s is a constant and s>0)

$\sum_{k=1}^n \log_s{k}$ ... maybe?

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