Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A study of the existing linear algebra libraries that you can use from
  C++ (Une \'etude des biblioth\`eques d'alg\`ebre lin\'eaire utilisables en
  C++)   A study of the existing linear algebra libraries that you can use from C++

9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th