Compute the determinant of
3 1 1 1
1 3 1 1
1 1 3 1
1 1 1 3
and
x, y, x+y
y, x+y, x
x+y, x, y
The second one is 3*3 matrix, I use comma to indicate there is space between them
收錄日期: 2021-04-13 19:48:07
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20131106000051KK00173