Some properties of adjoint matrix are discussed. The properties are symmetry, antisymmetry, positive definite, positive semi-definite, orthogonal and characteristic value.

摘要讨论了伴随矩阵在对称、反对称、正定、半正定、正交、相似和特徵值等方面的性质。

A good logo is not only an immaterial asset for an enterprise, but also it has an irremovable significance in the minds of consumers.Therefore it has definite value for its own sake.

优秀的标志不仅仅是企业的无形资产，而且在消费者心目中有着不可替代的地位，其本身也具有了不菲的身价。