单词	point symmetry
释义	Point Symmetry Point Symmetry is when every part has a matching part the same distance from the central point but in the opposite direction. It looks the same when viewed from opposite directions (180° rotation). Also called Origin Symmetry, and is identical to "Rotational Symmetry of Order 2".
随便看	units univariate data universal set upper bound us standard units value variable variance vector velocity venn diagram vertex vertex (parabola) vertical vertical angles vertical flip vertical shift vertically opposite angles vertices vigesimal vinculum visual estimation volume vulgar fraction wage

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。