Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Improved Formula for Jacobi Rotations   We present an improved form of the algorithm for constructing Jacobi
rotations. This is simultaneously a more accurate code for finding the
eigenvalues and eigenvectors of a real symmetric 2x2 matrix.

16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom