Solving Volterraʹs Population Model Using New Second Derivative Multistep Methods

In this study new second derivative multistep methods (denoted SDMM) are used to solve Volterraʹs model for population growth of a species within a closed system. This model is a nonlinear integro-differential where the integral term represents the effect of toxin. This model is first converted to a nonlinear ordinary differential equation and then the new SDMM, which has good stability and accuracy properties, are applied to solve this equation. We compare this method with the others and show that new SDMM gives excellent results.