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页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
协方差:两个实值随机变量 X、Y 的协方差定义为 Cov(X,Y)=E[(X-μ)(Y-ν)],其中 μ=E(X),ν=E(Y)。
covariances — plural of covariance
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协方差:两个实值随机变量 X、Y 的协方差定义为 Cov(X,Y)=E[(X-μ)(Y-ν)],其中 μ=E(X),ν=E(Y)。；在某些情况下,数据类型从较宽类型向较窄类型的转换。；协方差；[化] 协方差
A statistical measure defined as scriptstyle operatorname Cov(X,Y)= operatorname E((X-μ)(Y-ν)) given two real-valued random variables X and Y, with expected values scriptstyle E(X),=,μ and scriptstyle E(Y),=,ν.
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协方差:两个实值随机变量 X、Y 的协方差定义为 Cov(X,Y)=E[(X-μ)(Y-ν)],其中 μ=E(X),ν=E(Y)。
A statistical measure defined as scriptstyle operatorname Cov(X,Y)= operatorname E((X-μ)(Y-ν)) given two real-valued random variables X and Y, with expected values scriptstyle E(X),=,μ and scriptstyle E(Y),=,ν.
在某些情况下,数据类型从较宽类型向较窄类型的转换。
The conversion of data types from wider to narrower in certain situations.
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页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.