c3-100c1
6 3 -1
3 -1 -3
-1 5 6
r1-2r2,r2+3r3
0 5 5
0 14 15
-1 5 6
r2-(14/5)r1
0 5 5
0 0 1
-1 5 6
交换行(2次)
-1 5 6
0 5 5
0 0 1
D = -5.
c3-100c1
6 3 -1
3 -1 -3
-1 5 6
r1-2r2,r2+3r3
0 5 5
0 14 15
-1 5 6
r2-(14/5)r1
0 5 5
0 0 1
-1 5 6
交换行(2次)
-1 5 6
0 5 5
0 0 1
D = -5.