Copyright © 2010 A. Neamaty and R. Darzi. This is an open access article distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
We applied the variational iteration method and the homotopy perturbation
method to solve Sturm-Liouville eigenvalue and boundary value problems. The main advantage
of these methods is the flexibility to give approximate and exact solutions to both
linear and nonlinear problems without linearization or discretization. The results show that
both methods are simple and effective.