University of Technology-IraqEngineering and Technology Journal1681-690032120140128Numerical Solution of Optimal Control Problems Using New Third Kind Chebyshev Wavelets Operational Matrix of Integration14515610230510.30684/etj.32.1B.17ENAsmaa Abdullah AbdurrahmanJournal Article20140101In this paper, we first construct third kind Chebyshev wavelets on the interval [0,1). Then, a 2^k M×2^k M matrix P, named as almost third kind Chebyshev wavelets operational matrix of integration is constracted and used to reduce the optimal control problem to a system of algebric equation with the aid of spectral method, which can be solved easily. The uniform convergence of third kind Chebyshev wavelets is also discussed in this paper. The method is then tested on numerical example.https://etj.uotechnology.edu.iq/article_102305_058b0b1b3b725606c9fe3df02a46167d.pdf