单词	right-angled triangle
释义	Right-Angled Triangle A triangle that has a right angle (90°)
随便看	radian radical radicand radius radius (polygon) radix random random sample range (statistics) range of a function rate rate of return ratio rational expression rational function rational number ray real number reciprocal rectangle rectangular coordinates rectangular prism recurrence relation recurring decimal recursion

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。