摘要
在等距结点分布的情况下,对振荡积分分别导出由Ⅰ,Ⅱ,Ⅲ型三次样条构造的插值型求积公式,进行了误差估计,并举出数值实例说明该公式确实具有较高代数精确度.
We got interpolatory quadrature formulas with equidistance knots using three types of cubic spline for oscillating integral, estimated the error, and a numerical example was given to illustrate the high accuracy of our method as well.
出处
《大学数学》
北大核心
2007年第5期152-155,共4页
College Mathematics
关键词
振荡积分
三次样条
等距结点
插值型求积
oscillating integrals
cubic spline
equidistance knots
interpolatory quadrature
