【Abstract】 A second-order linear scalar differential equation including a zeroth order term is approximated by using a new stablized finite element method, which can attenuate the oscillations present using the standard Galerkin method with very small coefficient of the seconder-order term. By the helpness of additional variable which could be static condensated, we generalize the "unusual stabilized finite element method" developed in [1] from linear triangle element to bilinear quartdral element, and we establish a convergence study and obtain successful numerical simulation.更多还原