Issa, K.Ibrahim, G. R.,Bakare, G. N.2020-02-202020-02-202015-05Issa. K., Ibrahim, G. R., and Bakare, G. N. (2015)http://hdl.handle.net/123456789/3815This paper compares the error estimation of power series solution with recursive Tau method for solving ordinary differential equations. From the computational viewpoint, the power series using zeros of Chebyshev polynomial is effective, accurate and easy to use.enLanczos Tau method,Chebyshev polynomial,initial value problems,Lanczos- Ortiz Canonical polynomial,Ordinary Differential EquationsArticle