Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ramanujan-type formulae for $1/\pi$: A second wind?   In 1914 S. Ramanujan recorded a list of 17 series for $1/\pi$. We survey the
methods of proofs of Ramanujan's formulae and indicate recently discovered
generalizations, some of which are not yet proven.

36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin