【摘要】 共轭梯度法在求解非线性最优化问题的一种重要的方法.基于前人的研究成果,提出一种新的梯度公式并将其进行修正,最后在Wolfe搜索下证明该梯度法是全局收敛的,然后通过数值试验显示该算法是有效的.更多还原

【Abstract】 The conjugate gradient method plays an important role in solving the nonlinear unconstrained optimization problems.In this paper a new conjugate gradient formula based on the former results is put forward,and it finally turns out to be globally convergent in the condition of Wolfe search.Then some numerical tests have been made to show that the algorithm is effective.更多还原