  In this study linear and nonlinear higher order singularly perturbed problems
are examined by a numerical approach, the differential quadrature method. Here,
the main idea is using Chebyshev polynomials to acquire the weighting
coefficient matrix which is necessary to get numerical results. Following this,
different class of perturbation problems are considered as test problems. Then,
all results are shown in tables and also comparison between numerical and exact
solution shows the accuracy and effectiveness of the presented method.
