摘要
基于二次型与矩阵的密切关系,对一般实方阵的正定性,给出判断方阵正定性的一些充分必要条件,从而得到判断实二次型正定的简便方法.
Based on the relationship between the quadratic form and the matrices, the necessary and sufficient conditions for decision of the positive definite square matrix is given. A simple Way on teh decision of the positive definite real quadratic form is obtained.
出处
《沈阳理工大学学报》
CAS
2005年第2期8-9,21,共3页
Journal of Shenyang Ligong University
关键词
二次型
矩阵
正定
quadratic form
matrix
positive definite
