单词	secant (function)
释义	Secant (function) In a right angled triangle, the secant of an angle is: The length of the hypotenuse divided by the length of the adjacent side. The abbreviation is sec sec(θ) = hypotenuse / adjacent It is not commonly used, and is equal to 1/cosine
随便看	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 twice

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。