| 释义 |
[/ˏpɜːmjuːˈteɪʃn; ˏpəmjəˋteʃən/] n (fml 文) 用法:
1 (esp mathematics 尤用於数学) (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. 用法:
2 (infml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. |