Ch-7-Prob-4-New-박종우

2244 days ago by matrix

A=matrix(4,5,[[9,4,-2,9,-4],[0,3,4,2,0],[9,-6,-5,-8,-1],[7,4,3,-9,0]]) A.rref() print A.rref() print A.rank() print A.right_nullity() 
        
[    1     0     0     0 -7/31]
[    0     1     0     0 -2/31]
[    0     0     1     0  4/31]
[    0     0     0     1 -5/31]
4
1
[    1     0     0     0 -7/31]
[    0     1     0     0 -2/31]
[    0     0     1     0  4/31]
[    0     0     0     1 -5/31]
4
1