“variace-covariance matrix”的概念、定义、翻译、参考文献-科学参考

单词	variace-covariance matrix
释义	variace-covariance matrix Encyclopedia 工学精度释 variace-covariance matrix方差-协方差矩阵随机变量的方差和协方差的集合。是以随机变量的方差为主对角元素，随机变量间的协方差为非主对角元素构成的一个对称方阵。
随便看	difference poset difference product difference proportion difference quotient difference ring difference scheme difference semigroup difference sequence difference series difference set difference table difference triangle set differencing different different association theory different from zero differentiability differentiability condition differentiability criterion differentiability of a function differentiability of a solution differentiability theorem differentiable differentiable action differentiable algebraic system

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