矩阵资料下载.pdf
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A,Bn?
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AB?
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A,B?
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An?
vAAT=I,detA=1,Kdet(I+A)=0.6.?
n,vAAT=I,detA=1,Kdet(IA)=0.7.?
A3?
detA=12,det(2A)15A).8.?
A=110011101,AX=2X+A,X.9.?
A2=I,y(A+I)+(AI)=n.10.?
A2=A,yA+(AI)=n.11.yXJ?
A_KA?
A_(A)1=(A1).12.?
n2,ydetA=(detA)n1.13.?
n2,yA=n,?
A=n,1,?
A=n1,0,?
A2,y(A)=(detA)n2A.115.?
X=OACO!
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=det(InAB)=det(ImBA).17.A,BOnmmn?
6=0.ydet(InAB)=nmdet(ImBA).SSSKKKYYYJJJ1.J
(1)A=12(A+AT)+12(AAT);
(2)?
95(AT)1=(A1)T.2.J?
A=(aij),KA2=ATA?
(i,i)?
a21i+a22i+a2ni=0,i=1,2,n.3.JdA=AT?
detA=det(AT)=
(1)ndetAT=
(1)ndetA.4.J:
(AB)T=BTAT.5.Jdet(I+A)=det(AAT+A)=det(A(AT+I).6.Jdet(IA)=det(AATA)=det(A(ATI).7.16.8.X=011101110.9.JA2=IU?
(A+I)(AI)=O21oSK13!
14.10.JKyaq.11.J|AA=detAI.12.J|AA=detAI9A.detA6=0detA=0/.13.J
(1)?
A=n,A_,l?
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(2)?
A=n1,Akn1?
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A6=O.?
ddudetA=0,dAA=detAI=O.(3)?
An1,dAA=O.214.J|AA=detAI9SK12!
13.detA6=0detA=0/.15.X1=OC1A1O!
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ImBAIn!
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