“absolute value”的概念、定义、习题解题方法及翻译-数学辞典

单词

absolute value

释义

absolute value

For any real number $inline$ , the absolute value (also called the modulus) of $inline$ , denoted by $inline$ , is $inline$ itself if $inline$ , and $inline$ if $inline$ . Thus $inline$ is positive except when $inline$ . The following properties hold:

(i) $inline$

(ii) $inline$

(iii) $inline$

(iv) For $inline$ , $inline$ if and only if $inline$ .

(ii) is the triangle inequality and (iii) is sometimes known as the reverse triangle inequality.

Graph of absolute value

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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。