Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Angle distribution of two random chords in the disc: A sine law   Motivated by models in engineering and also biology we determine in closed
form the probability density function of the angle shaped by two random chords
in a fixed disc. Our main result focus on the event in which the intersection
locates inside the fixed disc and establishes a sine law.

25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn