in this paper, the author applies affine reduced operation to the model based secant method and gives a new method to look for the descent direction for solving unconstrained minimization problem.
for single operating parameter units, secant method coupled with a unit simulator is used to search feasible operating conditions implementing the quasi-optimal plan.
对于单操作参数装置,利用正割法搜索实现拟最优计划的可行操作条件。
in this paper, the chord secant method is further studied, and then some general forms of chord secant method are obtained.
进一步讨论了弦割法,给出了弦割法的一般形式,相信在方程求根的近似计算中有着重要的作用。
in this paper, the author applies affine reduced operation to the model based secant method and gives a new method to look for the descent direction for solving unconstrained minimization problem.
把仿射约化变换应用于基于模型的割线法中,给出了一种新的求解无约束极小化问题的下降方向算法。
on the basis of newton method, secant method used the difference quotient instead of calculating the value of derivative. his thesis derives improvements of newton method.
弦截法在牛顿法的基础上,利用差商来回避导数值的计算。本文推导了牛顿迭代法的各种改进方法。
compared with the secant method and function conversion method, the result show that the method converges more rapidly. generally, it will converge after iterating 1~2 times.