摘要
给出了一种新的近似已知二元函数方向导数的近似计算公式及误差估计,在一定条件下收敛率是最优的．
A new approximate formulas for the directional derivatives of functions of two variable contaminated by noise are given. Error estimates are derived. The convergence rates are optimal in some sense.
出处
《江西理工大学学报》
CAS
2006年第4期58-62,共5页
Journal of Jiangxi University of Science and Technology
关键词
不适定问题
近似方向导数
收敛率
Ⅲ -posed problems
approximate directional derivatives
convergence rate
