Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Computing the Entropy of a Large Matrix   Given a large real symmetric, positive semidefinite m-by-m matrix, the goal
of this paper is to show how a numerical approximation of the entropy, given by
the sum of the entropies of the individual eigenvalues, can be computed in an
efficient way. An application from quantum-optics illustrates the new
algorithm.

8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol