摘要
本文利用变量替换给出了n元二次式F(X)=XTAX+2BTX+c存在极值的充要条件,得出了极值的计算公式以及极值点的刻画.
In this paper, by using substitution of variables, sufficient and necessary existence conditions of the extreme value of n variable quadratic F(X) = X^T + 2B^TX + c are determined along with the calculation formula of the extreme and description of extreme point.
出处
《洛阳师范学院学报》
2006年第5期16-18,共3页
Journal of Luoyang Normal University
关键词
n元二次式
极值
极值点
特征值
quadratics of n variables
extreme value
extreme point
eigenvalue