【摘要】 给出了从k(<n)个共轭方向构造共轭正交方向的方法;讨论了用共轭正交方向替换共轭方向对搜索方向组的影响;提出了k个方向正交程度的判定方法.并对Brent方法作了相应的改进.更多还原

【Abstract】 A method is given for construction of conjugate and orthogonal directions using k( < n) conjugate directions. The effect of the substitution of conjugate and orthogonal directions for conjugate directions on search direction system is discussed. Besides a decision method for degree of orthogonal of k directions is proposed, and Brent method is improved as well.更多还原