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近似已知函数的求导方法

DIFFERENTIATION OF APPROXIMATELY SPECIFIED FUNCTIONS

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【Author】 Luo Xingjun Yang Suhua (Dept. of Math, and Computer, Gannan Normal University, Ganzhou 341000) Chen Zhongying (Department of Scientific Computing and Computer Applications , Zhongshan University, Guangzhou 510275)

【机构】赣南师范学院数学与计算机系；中山大学科学计算与计算机应用系赣州 341000；赣州 341000；广州 510275；

【Abstract】 We present a new stable approximate method for differentiation of specified functions. The convergence rate of the approximate differentiation is improved under some conditions and the improved estimate is O(δ4/5), as compared with the Groetsch’s method for approximate differentiation. Numerical experiments are presented.更多还原

【关键词】 Ill-posed problems； approximate differentiation； convergence rate.；
【Key words】 Ill-posed problems； approximate differentiation； convergence rate.；

【文献出处】高等学校计算数学学报 ,Numerical Mathematics a Journal of Chinese Universities , 编辑部邮箱 ,2006年01期
【分类号】O241.4
【被引频次】13
【下载频次】147

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