Solving Differential Equations Using Modified VIM

Document Type : Research Paper


Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran,Iran


In this paper a modification of He's variational iteration method (VIM) has been employed to solve Dung and Riccati equations. Sometimes, it is not easy or even impossible, to obtain the first few iterations of VIM, therefore, we suggest to approximate the integrand by using suitable expansions such as Taylor or Chebyshev expansions.