正定

positive definiteness covariance

正定协方差

positive definite transformation 正定变换 | positive definiteness covariance 正定协方差 | positive delivery 压力输送

positive definite quadratic form

正定二次型

positive definite operator 正定算子 | positive definite quadratic form 正定二次型 | positive direction 正方向

Sub-generalized positive definite matrix

次广义正定矩阵

实对称正定矩阵:real symmetric positive definite matrix | 次广义正定矩阵:Sub-generalized positive definite matrix | 对称正定矩阵:symmetric and positive definite matrix

positive definite operator

正定算子

positive definite matrix 正定矩阵 | positive definite operator 正定算子 | positive definite 正定的

positive definite function

正定函数

positive definite covariance 正定协方差 | positive definite function 正定函数 | positive definite matrix 正定矩阵

positive semidefinite matrix

半正定矩阵

positive definite quatratic form 正定二次型 | positive semidefinite matrix 半正定矩阵 | positive semidefinite quadratic form 半正定二次型

positive definite second variation

正定第二变分

正定二次型 positive definite quadratic form | 正定第二变分 positive definite second variation | 正定变换 positive definite transformation

positively definite sequence of numbers

正定数列

positively definite eigenvalue problem 正定特盏问题 | positively definite sequence of numbers 正定数列 | positively definite variational problem 正定变分问题

positive semidefinite

半正定=>準正定値

positive semi-definite matrix 正半定矩阵 | positive semidefinite 半正定=>準正定値 | positive semidefinite form 半正定型,正半定形式

positive definite Hermitian matrix

正定埃尔米特矩阵

positive definite Hermitian inner product ==> 正定埃尔米特内积 | positive definite Hermitian matrix ==> 正定埃尔米特矩阵 | positive definite Hermitian operator ==> 正定埃尔米特算子

of a composite function：复合函数之导数

Derivative :导数 | of a composite function :复合函数之导数 | of a constant function :常数函数之导数

enriched lake：富营养湖

LRPA Long-Range Patrol Aircraft 远程巡逻飞机 | enriched lake 富营养湖 | bang it about 决胜负 诉诸武力