Variational Iteration Method for Volterra Functional Integrodifferential Equations with Vanishing Linear Delays

Figure 2

Comparison of errors of the approximate solutions where the absolute errors are 𝑒_𝑖(𝑡)=|𝑢(𝑡)−𝑢_𝑖(𝑡)|,  𝑖=1,2,3,4.