permutation
n.改变,交换,[数]排列,置换
难易程度:
permutation为短语/超纲词汇
词形变化:
形容词:permutational
词根
mut＝to change（改变）
近义词, 同义词
difference variance variation variety diversity dissimilarity disagreement disparity inequality distinction contradistinction alteration modification permutation fine distinction subtle distinction shade of difference nuance discrimination different thing something else horse of a different color permutation combination variation election ratio proportion comparison progression arithmetical progression geometrical progression percentage power root exponent logarithm antilogarithm modulus base differential integral
permutation
/,pɜ:mju:'teɪʃn; ,pɝmjə`teʃən/
n (fml 文)
1 (esp mathematics 尤用于数学)
(a) [U] variation in the order of a set of things 排列; 置换.
(b) [C] any one of these arrangements 一组排列
*The permutations of x, y and z are xyz, xzy, yxz, yzx, zxy, zyx. x、y、z的排列是xyz、xzy、yxz、yzx、zxy、zyx.
2 (infml 口语作 perm) (Brit) (esp in football pools) selection of items from a group, to be arranged in a number of combinations （尤指足球普尔赌博中的）选定组合.
n (fml 文)
1 (esp mathematics 尤用于数学)
(a) [U] variation in the order of a set of things 排列; 置换.
(b) [C] any one of these arrangements 一组排列
*The permutations of x, y and z are xyz, xzy, yxz, yzx, zxy, zyx. x、y、z的排列是xyz、xzy、yxz、yzx、zxy、zyx.
2 (infml 口语作 perm) (Brit) (esp in football pools) selection of items from a group, to be arranged in a number of combinations （尤指足球普尔赌博中的）选定组合.
permutation
n[C]
[Date: 1300-1400; Language: Old French;Origin: permutacion, from Latin, from permutare 'to change completely']
one of the different ways in which a number of things can be arranged
a sandwich shop that sells every possible permutation of meat and bread
→combination
[Date: 1300-1400; Language: Old French;Origin: permutacion, from Latin, from permutare 'to change completely']
one of the different ways in which a number of things can be arranged
a sandwich shop that sells every possible permutation of meat and bread
→combination
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