# Ch-3.1-exam7-NEW-김준식

## 2144 days ago by matrix

A=matrix(QQ,[[4,-2,3], [5,0,2]]) I2=identity_matrix(2) # identity matrix identity_matrix(n), n is the order I3=identity_matrix(3) O2=zero_matrix(3, 2) # zero matrix zero_matrix(m, n), m, n are the order print I2*A print print A*I3 print print A*O2
 [ 4 -2 3] [ 5 0 2] [ 4 -2 3] [ 5 0 2] [0 0] [0 0] [ 4 -2 3] [ 5 0 2] [ 4 -2 3] [ 5 0 2] [0 0] [0 0]