positive definite

• 正定,正定的

positive definite的用法和样例：

例句

1. If a symmetrical matrix is positive definite, the determinants of all its minors are also positive.
   如果对称矩阵是为正定者，它的所有子式的行列式也都是正的。
2. Some in-equalities for the determinants of metapositive definite matrices were discussed.
   继续研究次正定矩阵的理论，给出了次正定矩阵行列式的几个不等式。