具有平方根的n个字母的置换的概率 |
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引用本文: | 杨继真,王云鹏.具有平方根的n个字母的置换的概率[J].洛阳师范学院学报,2013(11):19-20. |
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作者姓名: | 杨继真 王云鹏 |
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作者单位: | [1]洛阳师范学院数学科学学院,河南洛阳471022 [2]洛阳理工学院数理部,河南洛阳471023 |
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摘 要: | 本文给出了具有平方根的n个字母的置换的个数及其概率的表达式,并证明了该置换的概率是递降的.
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关 键 词: | 置换 循环 置换的概率 |
The Probability of the Permutations of n Letters with Square Roots |
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Institution: | YANG Ji-zhen WAN Yun-peng ( 1. College of Mathematics Science, Luoyang Normal University, Luoyang 471022, China ; 2. Mathematics and Physics Department, Luoyang University of Technology, Luoyang 471023, China) |
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Abstract: | In this paper, we give the expression of the probability of the permutations of n letters with square roots and prove this probability is descending. |
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Keywords: | permutation loop probability of the permutation |
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