Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Optimal Inverse Design of Magnetic Field Profiles in a Magnetically
  Shielded Cylinder
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int