C^TAC = B, 因 A, B 都是对角阵,则 C 也是对角阵, 设 C =
[p 0]
[0 q]
则 1p^2 = 3, 2q^2 = 4,
得 p = √3,q = √2。
当然也可以是 p = √3,q = -√2
或 p = -√3,q = √2
或 p = -√3,q = -√2
C^TAC = B, 因 A, B 都是对角阵,则 C 也是对角阵, 设 C =
[p 0]
[0 q]
则 1p^2 = 3, 2q^2 = 4,
得 p = √3,q = √2。
当然也可以是 p = √3,q = -√2
或 p = -√3,q = √2
或 p = -√3,q = -√2