Ch-3-Prob-6-New-황성빈

1905 days ago by matrix

#elementary_matrix=matrix([[1,0,0,0,0], [0,1,0,0,0],[0,0,1,0,0],[0,0,0,1,0],[0,0,0,0,1]]) E1=elementary_matrix(5, row1=1, row2=4) E2=elementary_matrix(5, row1=0, scale=1/4) E3=elementary_matrix(5, row1=4, row2=1, scale=-7) print "E1 =" print E1 print print "E2 =" print E2 print print "E3 =" print E3 
       
E1 =
[1 0 0 0 0]
[0 0 0 0 1]
[0 0 1 0 0]
[0 0 0 1 0]
[0 1 0 0 0]

E2 =
[1/4   0   0   0   0]
[  0   1   0   0   0]
[  0   0   1   0   0]
[  0   0   0   1   0]
[  0   0   0   0   1]

E3 =
[ 1  0  0  0  0]
[ 0  1  0  0  0]
[ 0  0  1  0  0]
[ 0  0  0  1  0]
[ 0 -7  0  0  1]
E1 =
[1 0 0 0 0]
[0 0 0 0 1]
[0 0 1 0 0]
[0 0 0 1 0]
[0 1 0 0 0]

E2 =
[1/4   0   0   0   0]
[  0   1   0   0   0]
[  0   0   1   0   0]
[  0   0   0   1   0]
[  0   0   0   0   1]

E3 =
[ 1  0  0  0  0]
[ 0  1  0  0  0]
[ 0  0  1  0  0]
[ 0  0  0  1  0]
[ 0 -7  0  0  1]