minor在经济学里面的数学含义是什么?例如 mapix对应的经济学数
英语
已帮助 人
minor在经济学里面的数学含义是什么?
例如,mapix对应的经济学数学里面的含义是矩阵,那么minor是什么呢?
Minors
The minor[Mij]of mapix A is the determinant of the mapix when row i and column i have been deleted.
For example,if the first row and first column are deleted from mapix
a11 a12 a13
A=a21 a22 a23
a31 a32 a33
the determinant of the remaining mapix will be the minor
a22 a23
[M11]=a32 a33