几种变换的行列式与特征值 a=d4)=-l=-11=[09] A=d4)=1s2=[10151-[90 0年det4)=02,3=0.21.0,p310 1.0-1.0 D4=det(A4)=1,24=[1 1p4-0. 0. 0.7071 0.7071 D,=125=[0.866+0.5i0.866-0.51]P0-07071i0+0,7071i 几种变换的行列式与特征值         1 2 3 4 1 0 det( ) 1, 1 1 , 0 1 0 1 det( ) 1.5, 1.0 1.5 , 1 0 0 1 det( ) 0.2, 0.2 1.0 , 1 0 1.0 1.0 det( ) 1, 1 1 , 0. D D D D   = = − = − =       = = = =       = = = =     − = = = = 1 1 1 2 2 2 3 3 3 4 4 4 A λ p A λ p A λ p A λ p 5   0. 0.7071 0.7071 1, 0.866 + 0.5i 0.866 0.5i , 0 0.7071i 0 + 0.7071i D         = = − =     − 5 5 λ p