Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new operational matrix technique to solve linear boundary value
  problems   A new technique is presented to solve a class of linear boundary value
problems (BVP). Technique is primarily based on an operational matrix developed
from a set of modified Bernoulli polynomials. The new set of polynomials is an
orthonormal set obtained with Gram-Schmidt orthogonalization applied to
classical Bernoulli polynomials. The presented method changes a given linear
BVP into a system of algebraic equations which is solved to find an approximate
solution of BVP in form of a polynomial of required degree. The technique is
applied to four problems and obtained approximate solutions are graphically
compared to available exact and other numerical solutions. The method is
simpler than many existing methods and provides a high degree of accuracy.

29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con