机构地区: 东莞理工学院计算机学院
出 处: 《东莞理工学院学报》 2009年第1期109-111,共3页
摘 要: 给出了Cramer法则的一个直接基于行列式按列进行Laplace展开的证明.这个证明直观易懂,适应于先修"高等数学(经管类)"的经管类等本科专业学生的教学. In this paper, Cramcr's rule, a basic theorem in linear algebra, is proved by the use of Laplace expansion along a fixed column. The proof is simple and can be understood easily. As a results, it is suitable in the teaching of" Linear Algebra" class for the undergraduate students who have a knowledge of" Advanced Mathematics in Economics".