順じゅん列れつ

noun

permutation

Mathematical term for an ordered arrangement of a set of items. Used in combinatorics and probability.

• 順じゅん列れつの数かずを計けい算さんする公こう式しきを覚おぼえていますか。

  Do you remember the formula for calculating the number of permutations?

• この問もん題だいでは、順じゅん列れつと組くみ合あわせの違ちがいが重じゅう要ようです。

  In this problem, the difference between permutations and combinations is important.

noun

lining up in order; linear arrangement

General term for arranging things in a line or sequence. Less common than 並べ方 or 配列 in everyday speech.

• 本ほんを順じゅん列れつに並ならべてください。

  Please line up the books in order.