# ch7-exercise17_황훌

## 1298 days ago by kyunganoh

A=matrix(QQ,4,5,[6,1,0,0,0,3,1,-5,0,0,9,-8,1,0,0,1,2,3,4,0]) b=matrix(QQ,4,1,[0,0,0,0]) print A.augment(b).rref() print print A.right_kernel()
 [1 0 0 0 0 0] [0 1 0 0 0 0] [0 0 1 0 0 0] [0 0 0 1 0 0] Vector space of degree 5 and dimension 1 over Rational Field Basis matrix: [0 0 0 0 1] [1 0 0 0 0 0] [0 1 0 0 0 0] [0 0 1 0 0 0] [0 0 0 1 0 0] Vector space of degree 5 and dimension 1 over Rational Field Basis matrix: [0 0 0 0 1]