Ch-4-Prob-P5-New-권의회

1899 days ago by matrix

adjA=matrix(QQ, 3, 3, [1, 0, 0, 0, 3, 2, 0, 7, 6]) print adjA.determinant() 
        
4
4
P=(adjA.determinant())^(1/(3-1)) print P 
        
2
2
A=P*adjA.inverse() print A 
        
[   2    0    0]
[   0    3   -1]
[   0 -7/2  3/2]
[   2    0    0]
[   0    3   -1]
[   0 -7/2  3/2]