The problem of magnetohydrodynamic caused convective boundary layer flow, passing through an elongating or compressing sheet while the heat source is included. The governing systems of nonlinear partial differential equation which are the boundary layer momentum and heat transfer equations are transformed to be nonlinear ordinary differential equations using similarity transformation. Then the coupled nonlinear ordinary differential equation were solved by a numerical method called spectral relaxation method. There after, we investigate the effects of the magnetic fields, suction, Prandtl number, heat source, shrinking and stretching sheet. Finally, numerical solution of the skin friction coefficient and the non-dimensional temperature are shown for various physical parameters.

magnetohydrodynamic, stretching sheet, shrinking sheet, boundary layer, similarity transformation.