Tagged Questions
3
votes
2answers
66 views
Number theory Exercise
for positive integer $n$, how can we show
$$ \sum_{d | n} \mu(d) d(d) = (-1)^{\omega(n)} $$
where $d(n)$ is number of positive divisors of $n$ and $mu(n)$ is $(-1)^{\omega(n)} $ if $n$ is square ...
0
votes
0answers
107 views
a follow up question to the birthday-paradox question.
The previous question.
My goal is to find a function of the difference (error) between F and G generally.
F = $\Pi_{0}^{n-1}\frac{365-b}{365}$
G = $ \frac {364}{365}^{\frac {n^2-n}{2}}$
Now F ...
-1
votes
2answers
352 views
write text using an equation
Well like the batman equations and equations for heart, I once saw a site that draws equation for whatever text you type....but now I can't find it.
Does anybody know such a site?
Also a general ...
