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  • 排列(组合数学术语)_百度百科
    排列(permutation),数学的重要概念之一。 有限集 的子集按某种条件的序化法排成列、排成一圈、不许重复或许重复等。
  • Combinations and Permutations - Math is Fun
    In English we use the word combination loosely, without thinking if the order of things is important In other words:
  • 置换和排列 - OI Wiki
    一个集合 𝑋 到自身的双射(即一一对应) 𝜎 称为 𝑋 的一个 置换 (permutation)。 如果集合 𝑋 上还具有 全序 关系,则它的一个置换也常称作一个 (全)排列。
  • PERMUTATION中文 (简体)翻译:剑桥词典 - Cambridge Dictionary
    permutation noun (DIFFERENT WAY FORM) Add to word list [ C usually plural ] formal any of the various ways in which a set of things can be ordered
  • Permutations Calculator nPr
    Permutation Replacement The number of ways to choose a sample of r elements from a set of n distinct objects where order does matter and replacements are allowed
  • permutation - 搜索 词典
    8 To produce the permutation, the sequence must be processed both forward and backward, thus requiring bidirectional iterators 为了 产生 排列, 必须 对 序列 进行 前 向 和 后 向 处理, 因此 要求 双向 迭代器。
  • 小白统计学|2. 概率论之排列(permutation) - 知乎
    一般的说, 排列 (permutation):从大小为 n 的 样本空间 中,抽取出大小为 r 的子集的个数,记为 (n r) 。 详细的说,排列的定义是“无重复”抽取“无序样本“,即不能再去排列子集的元素了。
  • Permutation - GeeksforGeeks
    In Mathematics, a Permutation is defined as a mathematical concept that determines the number of possible arrangements for a specific set of elements Therefore, it plays a big role in computer science, cryptography, and operations research




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