单词	outer Σ-group
释义
随便看	sign of approximately equal sign of approximately equal sign of division sign of evolution sign of greater than sign of greater than or equal sign of inequality sign of less than sign of less than or equal sign of multiplication sign of not greater than sign of not less than sign of operation sign of order sign of percent sign of per mille sign of power sign of ratio sign of separation period sign of subtraction sign of trigonometric function value sign of trigonometric function values of different quadrant angles sign of two projection methods sign rule of a fraction signum function

数学辞典收录了63749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。