Problems of physics, mechanics of theoretical and practical importance are solved by the method of integral equations. Mathematical physics uses integral equations to solve problems. Therefore, it is important to find solutions to integral equations. But it is not always possible to find analytical solutions of integral equations. Thus, we study the numerical methods of integral equations. This paper shows how to find numerical solutions to Volterra equation of the second kind using the MATLAB program. The results are compared with the exact solution by using computer simulations.