Construction of Gauss-Christoffel quadrature formulas
Construction of Gauss-Christoffel quadrature formulas
复制标题
高斯-克里斯托菲尔求积公式的构造
DOI:
10.1090/s0025-5718-1968-0228171-0
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发表时间:
1968
影响因子:
2
通讯作者:
W. Gautschi
中科院分区:
文献类型:
--
作者:
W. Gautschi
Each of these rules will be called a Gauss-Christoffel quadrature formula if it has maximum degree of exactness, i.e. if (1.1) is an exact equality whenever f is a polynomial of degree 2n 1. It is a well-known fact, due to Christoffel [3], that such quadrature formulas exist uniquely, provided the weight function w(x) is nonnegative, integrable with Jb w(x)dx > 0, and such that all its moments