Since we're just looking at numerical expressions right now, going back and forth between vectors and one by two matrices might feel like a silly thing to do, but this suggests something that's truly awesome from the geometric view.

因为我们现在只是在看数值表达式 在向量和1×2矩阵之间来回切换可能会感觉很傻 但从几何角度来看 这表明了一些非常棒的东西。