walnut004
幼苗
共回答了22个问题采纳率:95.5% 举报
2 -1 3 1
4 -2 5 4
-4 2 -6 -2
2 -1 4 0
r3+r2,r2-2r1,r4-r1
2 -1 3 1
0 0 -1 2
0 0 -1 2
0 0 1 -1
r3-r2,r4+r2
2 -1 3 1
0 0 -1 2
0 0 0 0
0 0 0 1
-->
2 -1 3 1
0 0 -1 2
0 0 0 1
0 0 0 0
(这是梯矩阵)
r1-r3,r2-2r3,r1+3r2,r1*(1/2),r2*(-1)
1 -1/2 0 0
0 0 1 0
0 0 0 1
0 0 0 0
1年前
7