矩阵的乘法,本质是一种运动。
2.改变空间位置:矩阵乘以向量的本质
https://www.zhihu.com/question/28623194
https://zhuanlan.zhihu.com/p/32133330?utm_source=wechat_session
https://www.zhihu.com/question/21351965/answer/204058188
https://zhuanlan.zhihu.com/p/26663064