[理工] [矩陣] 逆矩陣?
[ 1 2 -1 0 ]
[-1 -2 1 2 ]
A = [ 0 0 2 0 ]
[ 2 2 0 1 ]
[-3/2 -1/2 -1/2 1 ]
-1 [ 5/4 1/4 1/2 -1/2]
答案: A = [ 0 0 1/2 0 ]
[ 1/2 1/2 0 0 ]
[ -1 0 1/2 1 ]
-1 [ 5/4 1/4 1/2 -1/2]
我是算: A = [ 0 0 1/2 0 ]
[ 1/2 1/2 0 0 ]
怎麼算都怪怪的
逆矩陣的第一列不太一樣
有高手可幫忙解惑嗎?
我基本列運算
R21(-2)*R32(1)*R31(1)*R42(1/2)*R4(1/2)*R3(1/2)*R2(-1/2)*R24*R14(-2)*R12(1)A = I
-1
A = R21(-2)*R32(1)*R31(1)*R42(1/2)*R4(1/2)*R3(1/2)*R2(-1/2)*R24*R14(-2)*R12(1)
請問可以幫我看算式嗎?
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