# ex7-1

## 1856 days ago by maxroot123

A = matrix(QQ, 3, 3, [1, 0, 0, 1, 2, -1, -3, 1, 0]) print(A) print('det = ', A.det())
 [ 1 0 0] [ 1 2 -1] [-3 1 0] ('det = ', 1) [ 1 0 0] [ 1 2 -1] [-3 1 0] ('det = ', 1)