[제2회] 회전행렬로서의 상상행렬 전기현 0 1758 0 0 2022.05.01 15:28 ![Screenshot 2022-05-01 at 20.08.36.png](https://freshrimpsushi.com/community/data/editor/2205/2615581243_1651403335.5024.png "Screenshot 2022-05-01 at 20.08.36.png") 0 0