Next video, by popular request, will be a brief footnote about non square matrices.

下一个视频 根据大家的要求 将是一个关于非方阵的简短脚注。

But several commenters have asked about non square matrices, so I thought I'd take a moment to just show what those mean geometrically.

但是有几个评论者问了关于非方阵的问题 所以我想我应该花点时间来说明这些矩阵在几何上的含义。