Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Identities for squared central binomial coefficients   We prove four identities for the squared central binomial coefficients. The
first three of them reflect certain transformation properties of the complete
elliptic integrals of the first and the second kind, while the last one is
based on properties of the Lagrange polynomials.

34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg