# 3.7(new) solved by 김선호 정양헌 김준현

## 2451 days ago by math2013

A=matrix(3,6,[1,3,-2,1,0,0,1,4,-2,0,1,0,3,0,2,0,0,1]) B=matrix(3,6,[1,1,0,1,0,0,0,1,1,0,1,0,1,0,1,0,0,1]) print "A=" print A print "rref of A" print A.rref() print "B=" print B print "rref of B" print B.rref()
 A= [ 1 3 -2 1 0 0] [ 1 4 -2 0 1 0] [ 3 0 2 0 0 1] rref of A [ 1 0 0 1 -3/4 1/4] [ 0 1 0 -1 1 0] [ 0 0 1 -3/2 9/8 1/8] B= [1 1 0 1 0 0] [0 1 1 0 1 0] [1 0 1 0 0 1] rref of B [ 1 0 0 1/2 -1/2 1/2] [ 0 1 0 1/2 1/2 -1/2] [ 0 0 1 -1/2 1/2 1/2] A= [ 1 3 -2 1 0 0] [ 1 4 -2 0 1 0] [ 3 0 2 0 0 1] rref of A [ 1 0 0 1 -3/4 1/4] [ 0 1 0 -1 1 0] [ 0 0 1 -3/2 9/8 1/8] B= [1 1 0 1 0 0] [0 1 1 0 1 0] [1 0 1 0 0 1] rref of B [ 1 0 0 1/2 -1/2 1/2] [ 0 1 0 1/2 1/2 -1/2] [ 0 0 1 -1/2 1/2 1/2]