Document Type : Research Article
Department of Science, School of Mathematical Sciences, University of Zabol, Iran
Faculty of Engineering, Sabzevar University of New Technology, Sabzevar, Iran
We successively apply the rational Haar wavelet to solve the nonlinear Volterra integro-differential equations and nonlinear Fredholm integro-differential equations. Using the Banach fixed point theorem for these equations, we prove the convergence. In this method, no numerical integration is used. Numerical results are presented to show the effectiveness of this method.