Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Method of Hidden Parameters and Pell's Equation   Using the representation of numbers, the methods of decreasing the number of
calculation steps for Pell's equation are developed. The formulae relating the
natural solution x0 of Pell's equation for A0 with the infinite number of
minimal natural solutions xi for other Ai are obtained for various cases. The
parametric representation of Pell's equation solutions are obtained with the
help of new "method of hidden parameters".

30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th