OICC Press International Journal of Mathematical Modelling & Computations 2228-6233 10 01 2025 07 12 Using Radial Basis Functions for Numerical Solving Two-Dimensional Voltrra Linear Functional Integral Equations 10.71932/ EN Reza Firouzdor Young Researcher Elite Club, Central Tehran Branch, Islamic Azad University, Tehran, Iran Reza Khaksari Department of Mathematics, Faculty of Science, Hamedan Branch, Islamic Azad University, Hamedan, Iran Atousa Emady Department of Computer, Islamic Azad University, Najafabad, Esfahan, Iran Journal Article 2025 07 12 This article is an attempt to obtain the numerical solution of functional linear Voltrra two-dimensional integral equations using Radial Basis Function (RBF) interpolation which is based on linear composition of terms. By using RBF in functional integral equation, first a linear system ΓC = G will be achieved; then the coefficients vector is defined, and finally the target function will be approximated. In the end, the validity of the method is shown by a number of examples.