“characteristic function”的概念、定义、翻译、参考文献-科学参考

　

单词	characteristic function
释义	characteristic function Mathematics A synonym for indicator function. Statistics The (complex-valued) function E(e^itX), where X is a random variable, t is a real variable and . If X is continuous and has probability density function f then the characteristic function is a multiple of the Fourier transform of f. The characteristic function is closely related to the moment-generating function and has the advantage of always existing. The first English use of the phrase ‘characteristic function’ was by Kullback in 1934. Computer of a subset S of a universal set U. A function that indicates whether or not an element is a member of the subset S. It is the function $f : U \to {0, 1}$ defined as follows: $\begin{array}{l} f (x) = 1 & if x \in S \\ f (x) = 0 & if x \notin S \end{array}$ The codomain might also be given as {true,false} or {1,2}.
随便看	principle of contradiction or noncon-tradiction principle of double effect principle of double negation principle of equivalence principle of excluded fourth principle of excluded middle principle of excluded third principle of explosion principle of included fragments principle of indifference principle of individuation principle of insufficient reason principle of least action principle of least privilege principle of mathematical induction principle of moments principle of non-contradiction principle of non-triviality principle of parsimony principle of plenitude principle of sufficient reason principle of superposition principle of the excluded middle principle of uniformitarianism principle of utility

　

科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。

　

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号更新时间：2024/6/30 20:11:52