摘要
利用长度关系给出了欧氏空间的变换为对称变换的若干个充要条件。
A few good necessary and sufficient conditions are given by using length relation for symmetrical transformation on Euclidean space.
关键词
对称变换
充要条件
长度关系
欧氏空间
Euclidean space
length
transformation
symmetrical transformation
necessary and sufficient condition
