Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An efficient algorithm for electronic-structure calculations   We show how to adapt the quasi-Newton method to the electronic-structure
calculations using systematic basis sets. Our implementation requires less
iterations than the conjugate gradient method, while the computational cost per
iteration is much lower. The memory usage is also quite modest, thanks to the
efficient representation of the approximate Hessian.

0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn