[線代] 求對角矩陣

[mqazz1 (無法顯示)]

    [ a b c ]
A = [ d e f ]
    [ g h i ]

               [  a 1/2b 1/4c ]
D^(-1) A D  =  [ 2d    e 1/2f ]
               [ 4g   2h    i ]


D is diagonal matrix

求 D = ?



請問這題要怎麼求呢?

謝謝

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