# Untitled

## 2236 days ago by matrix

A=matrix(4,6,[1,1,1,0,6,0,0,0,2,1,7,2,0,-1,0,2,1,4,0,-1,2,2,7,1]) B=A.rref() c=vector([2,1,3,1]) d=vector([-9/2,6,-3/2,5]) print B print print 3*c+8*d
 [ 1 0 0 0 2 -9/2] [ 0 1 0 0 1 6] [ 0 0 1 0 3 -3/2] [ 0 0 0 1 1 5] (-30, 51, -3, 43) [ 1 0 0 0 2 -9/2] [ 0 1 0 0 1 6] [ 0 0 1 0 3 -3/2] [ 0 0 0 1 1 5] (-30, 51, -3, 43)