“index”的概念、定义、习题解题方法及翻译-数学辞典

单词

index

释义

index

(permutations) The index ind(σ) of a permutation σ of a finite set is the least number k such that σ can be written as a product of k transpositions (or 2-cycles). Given two permutations σ and τ, then

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数学辞典收录了4151条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。