摘要
The Bjorck and Pereyra algorithms used for solving Vandermonde systemof equation are modified for the case where the points are symmetricly situated aroundzero. The working operation is saved about half. A forward error analysis is presentedfor the modified algorithms, and it's shown that if the points are situated in some order,the error bound are as good as Higham's result in 1987.
The Bjorck and Pereyra algorithms used for solving Vandermonde system of equation are modified for the case where the points are symmetricly situated around zero. The working operation is saved about half. A forward error analysis is presented for the modified algorithms, and it's shown that if the points are situated in some order, the error bound are as good as Higham's result in 1987.
基金
Supported by National Natural Science Foundation of China,under Grant Number 60175008.and Natural Science Foundation of Fujian Province under Grant A0110004.
