permutation

英 [ˌpɜːmjuˈteɪʃn]

美 [ˌpɜːrmjuˈteɪʃn]

n. 排列(方式); 组合(方式); 置换

复数：permutations　

计算机

BNC.18648 / COCA.20172

牛津词典

noun

排列（方式）；组合（方式）；置换
any of the different ways in which a set of things can be ordered
1. The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx.
  x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。

柯林斯词典

N-COUNT 排列
Apermutationis one of the ways in which a number of things can be ordered or arranged.
1. Variation among humans is limited to the possible permutations of our genes.
  人类的变异受限于我们的基因可能存在哪些排列。

双语例句

Using gamma function, the paper popularized the common conceptions of the usual factorial, permutation and combination and proved some combination formulas in common use.
依照伽马函数，对通常的阶乘、排列、组合的概念进行了推广，并证明了一些常用的组合公式。
2 perform the following permutation on the data block.
对数据块进行如下置换。
The method used a parity-check matrix of a short LDPC code as its mother matrix upon which a long code was constructed with circulant permutation matrices.
该方法利用一个短的LDPC码的校验矩阵作为其母矩阵，在此基础上采用循环置换矩阵构造一个长的LDPC码。
Random permutation and sharpening are basic methods of image processing.
空间域随机置乱和锐化滤波是基本的图像处理方法。
In this paper, a new sorting algorithm consisted of classification, in situ permutation and straight insertion is presented.
基于此，本文提出了一种由分“档”、整体置换和局部直接插入排序所组成的新排序算法&分“档”置换插入排序法。
The single permutation generates from Quasi-single permutation with the insertion point, which is up to mass region.
其中的单排列可由准单排列插点生成，如何插点取决于排列中的单质区。
Variation among humans is limited to the possible permutations of our genes.
人类的变异受限于我们的基因可能存在哪些排列。
The fast Fourier transform algorithm for the production of the permutation factor circulant matrices;
给出了一类置换因子循环线性系统求解的一种快速算法。
A sort of3-element permutation with repetitions allowed is studied, and a recurrence relation in general condition is found.
研究一类特殊的可重复排列性质，建立了一般情形下求这类排列数的递推公式，导出了一些特殊情形下的具体计算公式。
Applications of Amplitude Modulation and Pixel Random Permutation Techniques in Double Random Phase Encryption System
振幅调制和像素随机置换技术在双随机相位加密系统中的应用