Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fokker-Planck and Quasilinear Codes   The interaction of radio-frequency waves with a plasma is described by a
Fokker-Planck equation with an added quasilinear term. Methods for solving this
equation on a computer are discussed.

14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga