[理工] [線代]-99年...
A =
[ 1 2 0]
[ 0 0 1]
[ 0 0 0]
[ 0 0 0]
1.
求column of A
2.
nullspace of A
1 我直接 把 A 寫給它 不知道對不對..
2.
AX = 0
x1 = -2*x2
x3 = 0
我寫 [ 1]
[-2]
[ 0]
阿 我寫錯了..
應該是 [ 2]
[-1]
[ 0] ...
哀
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