Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalizing Wallis formula   The present note generalizes a well-known formula for pi/2 named after the
English mathematician John Wallis. The two new formulas for infinite products
containing the natural numbers and their roots express them using the
Euler-Mascheroni constant and the Glaisher-Kinkelin constant. Like Wallis
formula, the generalizations are slowly convergent, but their importance is
aesthetic as the fomulas probably please the eye of the mathematical beholder.

1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio