Title Text:In fact, draw all your rotational matrices sideways. Your professors will love it! And then they’ll go home and shrink. Origin:https://xkcd.com/184/ https://www.explainxkcd.com/wiki/index.php/184:_Matrix_Transform 矩阵变换 https://www.douban.com/photos/photo/827024692/ 旋转矩阵变换（即，其中具有“cos”和“sin”的大括号）用于计算机图形中以旋转图像。通常，要在2D空间中顺时针旋转点[a1，a2]，可以将其乘以旋转矩阵[cos z°，sin z°; -s… Read more