Majid Erfanian - Department of Science, School of Mathematical Sciences, University of Zabol, Iran
Hamed Zeidabadi - 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.

Fixed point Banach theorem, nonlinear, Volterra, Fredholm, integro-differential, Haar wavelet, Convergence