||CMES: Computer Modeling in Engineering & Sciences, Vol. 38, No. 1, pp. 39-58, 2008
||Full length paper in PDF format. Size = 2,475,716 bytes
||One of the most universal and effective methods, in wide use today, for solving equations of mathematical physics approximately is the finite difference method (FDM). The Generalized finite difference method (GFDM) is evolved fron classical (FDM), which can be applied over general or irregular clouds of points.\newline This paper starts by showing the GFDM. In this paper, this meshless method is used for solving second-order partial (pde's) with constant coefficients in any type of domain. The method gives the values of derivatives in the nodes using the direct application of the formulae in differences obtained. \newline The following points describe an a posteriori error estimator. This serves as a starting point for an h-adaptive method to improve the solution of pde's by selectively adding nodes to the domain.