单词	subset
释义	Subset Part of another set. A is a subset of B when every member of A is a member of B. Example: B = {1,2,3,4,5} Then A = {1,2,3} is a subset of B Other subsets of B include {2,3} or {1,4,5} or {4} etc... But {1,2,6} is NOT a subset of B as it has 6 (which is not in B) See: Set
随便看	ratio rational expression rational function rational number ray real number reciprocal rectangle rectangular coordinates rectangular prism recurrence relation recurring decimal recursion recursive reduce reflection reflection symmetry reflex angle regrouping regular regular polygon regular polyhedron relative frequency relatively prime remainder

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。