Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strange Non-Chaotic Attractors with Unpredictable Trajectories   Continuous and discrete time systems possessing strange non-chaotic
attractors are under investigation. It is demonstrated that unpredictable
trajectories exist in the dynamics. A recent numerical technique, the
sequential test, is utilized to show the presence of unpredictability.

3
The categories of this paper are: physics
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an