“positive definite”的概念、定义、翻译、参考文献-科学参考

单词	positive definite
释义	positive definite [`päz·ǝd·iv `def·ǝ·nǝt] ^MATHEMATICS 1. A square matrix A of order n is positive definite if for every choice of complex numbers x₁, x₂, ..., x_n , not all equal to 0, where x̄_j is the complex conjugate of x_j . 2. A linear operator T on an inner product space is positive definite if 〈Tu,u〉 is greater than 0 for all nonzero vectors u in the space.
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