University of Tabriz Computational Methods for Differential Equations 2345-3982 3 3 2015 07 01 Solution of Bang-Bang Optimal Control Problems by Using Bezier Polynomials 177 191 4770 EN Ayatollah Yari Department of Applied Mathematics, Faculty of Mathematical Sciences, Payame Noor University, PO BOX 19395-3697, Tehran, Iran Mirkamal Mirnia Department of Applied Mathematics, Faculty of Mathematical Sciences, University of Tabriz Aghileh Heydari Department of Applied Mathematics, Faculty of Mathematical Sciences, Payame Noor University, PO BOX 19395-3697, Tehran,Iran Journal Article 2016 01 25 In this paper, a new numerical method is presented for solving the optimal control problems of Bang-Bang type with free or fixed terminal time. The method is based on Bezier polynomials which are presented in any interval as $[t_0,t_f]$. The problems are reduced to a constrained problems which can be solved by using Lagrangian method. The constraints of these problems are terminal state and conditions. Illustrative examples are included to demonstrate the validity and applicability of the method. https://cmde.tabrizu.ac.ir/article_4770_a00ee50be84f54611ea5e5335b492e2d.pdf