# LA+Ch+6+Ex+5+NEW+solved+by+김성찬+Finalized by 주민규

## 2451 days ago by jumin1046

A=matrix(4, 4, [0,0,-1,0,0,1,0,0,0,0,0,1,1,0,0,0]) print "AT*A =" print A.transpose()*A print print "inverse of A=" print A.inverse()
 AT*A = [1 0 0 0] [0 1 0 0] [0 0 1 0] [0 0 0 1] inverse of A= [ 0 0 0 1] [ 0 1 0 0] [-1 0 0 0] [ 0 0 1 0] AT*A = [1 0 0 0] [0 1 0 0] [0 0 1 0] [0 0 0 1] inverse of A= [ 0 0 0 1] [ 0 1 0 0] [-1 0 0 0] [ 0 0 1 0]