Episode 12a (38:37):
"It came from Row Space!"


Summary:

The Row Space of $\mathbf{A}$, like Column Space, is a place we need to know about too. All solutions to $\mathbf{A}\vec{x} = \vec{b}$ where $\vec{b} \ne \vec{0}$ have to come from somewhere that is not Nullspace. We show that subspace formed by all linear combinations of the rows of $\mathbf{A}$ is the right elsewhere. Many, many exciting, heartbeat-skipping discoveries follow including that Row Space of $\mathbf{A}$ is the Column Space of $\mathbf{A}^{\mbox{T}}$.

Best dined upon by 2016/10/10

Duration: 38:37

2016/10/10

38:37

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