节点文献
对|x|的有理逼近分析
The Analysis of the Rational Approximation on |x|
【摘要】 对非光滑函数|x|用有理函数rn(X;x)的插值逼近进行了研究,说明插值结点组在零点附近的分布与插值函数rn(X;x)逼近|x|的收敛速度没有直接关系.
【Abstract】 The rational approximation of unsmoothed function |x| is discussed,and it is proved that there is no relation between the distribution of the nodes around zero and the convergence of r_n(X;x) to (|x|.)
【关键词】 有理函数;
插值;
逼近;
结点;
收敛;
发散;
【Key words】 rational function; interpolation; approximation; nodes; convergence; divergence;
【Key words】 rational function; interpolation; approximation; nodes; convergence; divergence;
- 【文献出处】 河北师范大学学报(自然科学版) ,Journal of Hebei Normal University(Natural Science Edition) , 编辑部邮箱 ,2007年01期
- 【分类号】O174.41
- 【被引频次】4
- 【下载频次】52