Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/86667222f82b7f0d72153cb01c5224f9.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 symmetric matrix英英字典_symmetric matrix剑桥英语解释_symmetric matrix柯林斯英文解释_贰靶汉英词典
1. N a square matrix that is equal to its transpose, being symmetrical about its main diagonal. A skew symmetric matrix is equal to the negation of its transpose 对称矩阵[maths] →compare orthogonal matrix