一种新的高精度的余弦型振荡函数的Gauss积分方法

A New Highly Accurate Method of Gaussian Integration for Oscillating Functions of Cosine Type

给出一种新的高精度的求余弦型振荡函数的Gauss积分方法,该方法在仅调用2n个求积节点的情况下,达到4n+1的求积代数精确度.

This paper presents a new highly accurate method of Caussian integration for oscillating functions of cosine type, the method can get quadrature accuracy of 4n ＋ 1 only by 2n quadrature nodes.