单词	rotational symmetry
释义	Rotational Symmetry A shape has Rotational Symmetry when it still looks the same after some rotation. As we rotate this image we find three different positions that each look the same. So it has Rotational Symmetry of Order 3. See: Rotation
随便看	square matrix square measure square meter square millimeter square number square root standard deviation standard form standard form (numbers) standard normal distribution standard notation standard of living stationary point statistics stem-and-leaf plot stemplot steradian stochastic straight angle straight line subitising subscript subset substitution subtend

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。