# LA+Chapter7+Ex+8(new)-서승완

## 2264 days ago by math2013

A=matrix(4,5, [1,-2,2,-4,2,3,8,1,4,4,2,2,6,10,5,-3,4,5,2,-2]) B=A.rref() print B C=A.transpose() print print C print D=C.rref() print D
 [ 1 0 0 0 217/171] [ 0 1 0 0 -37/1026] [ 0 0 1 0 65/171] [ 0 0 0 1 13/513] [ 1 3 2 -3] [-2 8 2 4] [ 2 1 6 5] [-4 4 10 2] [ 2 4 5 -2] [1 0 0 0] [0 1 0 0] [0 0 1 0] [0 0 0 1] [0 0 0 0] [ 1 0 0 0 217/171] [ 0 1 0 0 -37/1026] [ 0 0 1 0 65/171] [ 0 0 0 1 13/513] [ 1 3 2 -3] [-2 8 2 4] [ 2 1 6 5] [-4 4 10 2] [ 2 4 5 -2] [1 0 0 0] [0 1 0 0] [0 0 1 0] [0 0 0 1] [0 0 0 0]