Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two almost-circles, and two real ones   Implicit locus equations in GeoGebra allow the user to do experiments with
generalization of the concept of ellipses, namely with $n$-ellipses. By
experimenting we obtain a geometric object that is very similar to a set of two
circles.

12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
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
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph