单词	standard deviation
释义	Standard Deviation A measure of how spread out numbers are. It is the square root of the Variance, and the Variance is the average of the squared differences from the Mean. See: Variance
随便看	transversal trapezium trapezoid treble tree trend line tri- trial trial and error triangle triangle inequality theorem triangular number triangular prism trigonometry trillion trinomial triple trisect truncated trust truth table turn turn symmetry twelve-hour clock twenty-four hour clock

数学辞典收录了1200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。