TY - JFULL AU - Ahmad Alhawarat and Mustafa Mamat and Mohd Rivaie and Ismail Mohd PY - 2014/2/ TI - A New Modification of Nonlinear Conjugate Gradient Coefficients with Global Convergence Properties T2 - International Journal of Mathematical and Computational Sciences SP - 53 EP - 60 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/9997245 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 85, 2014 N2 - Conjugate gradient method has been enormously used to solve large scale unconstrained optimization problems due to the number of iteration, memory, CPU time, and convergence property, in this paper we find a new class of nonlinear conjugate gradient coefficient with global convergence properties proved by exact line search. The numerical results for our new βK give a good result when it compared with well known formulas. ER -