ℚ The set of rational numbers. The symbol also denotes the field of rational numbers, and ℚ denotes the multiplicative group of non-zero rational numbers.
ℚ
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。