Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Note on the Jordan Canonical Form   A proof of the Jordan canonical form, suitable for a first course in linear
algebra, is given. The proof includes the uniqueness of the number and sizes of
the Jordan blocks.

11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex