Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The moments of the distance between two random points in a regular
  polygon   In this paper, we derive formulas for the analytical calculation of the
moments of the distance between two uniformly and independently distributed
random points in an $n$-sided regular polygon. A number of closed form
expressions is provided, e.g. the expected distances for $n = 3,4,5,6,8,10,12$,
where the results for $n = 5,8,10,12$ are new to the best of the author's
knowledge. Applying results of Voss, remarkably short formulas for the second
and the fourth moments are derived.

12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
18
The categories of this paper are: econ