Ch7-3_v2_noh

1674 days ago by kyunganoh

A=matrix(ZZ, 1, 5, [1,2,3,4,5]) A.right_kernel() # 
        
Free module of degree 5 and rank 4 over Integer Ring
Echelon basis matrix:
[ 1  0  0  1 -1]
[ 0  1  0  2 -2]
[ 0  0  1  3 -3]
[ 0  0  0  5 -4]
Free module of degree 5 and rank 4 over Integer Ring
Echelon basis matrix:
[ 1  0  0  1 -1]
[ 0  1  0  2 -2]
[ 0  0  1  3 -3]
[ 0  0  0  5 -4]
A=matrix(ZZ, 1, 5, [1,2,3,4,5]) A.right_nullity()#해공간의 차원 = nullity(A)=4 
        
4
4