Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/c263f9122f041e06d2543f25e2d33f38.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 square matrix例句_square matrix英汉例句_square matrix双解例句_甲百汇小鸡词典
Braces are used for the column matrices to distinguish them from rectangular matrices usually put in square brackets. 大括号用于列矩阵，以便使列矩阵与矩形矩阵区分开，矩形矩阵通常采用方括号。