@article{MAKHILLRJAS20171219992, title = {A New Search Direction for Broyden’s Family Method with Coefficient of Conjugate Gradient in Solving Unconstrained Optimization Problems}, journal = {Research Journal of Applied Sciences}, volume = {12}, number = {1}, pages = {31-36}, year = {2017}, issn = {1815-932x}, doi = {rjasci.2017.31.36}, url = {https://makhillpublications.co/view-article.php?issn=1815-932x&doi=rjasci.2017.31.36}, author = {Mohd Asrul Hery,Zahratul Amani,Mustafa,Ummie Khalthum Mohd and}, keywords = {Broyden method,CG-Broyden method,CPU time,conjugate gradient method,globally convergent}, abstract = {In this study, we present a new search direction known as the CG-Broyden method which uses the search direction of the conjugate gradient method approach in the quasi-Newton methods. The new algorithm is compared with the quasi-Newton methods in terms of the number of iterations and CPU-time. The Broyden’s family method is used as an updating formula for the approximation of the Hessian for both methods. Our numerical analysis provides strong evidence that our CG-Broyden method is more efficient than the ordinary Broyden method. Besides, we also prove that the new algorithm is globally convergent.} }