
S3E22: The Mättrix Part I: Defining & Manipulating Matrices
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How to Transpose a Square Matrix Array
We're going to make huge use of transposes, because that's gongto allow us to do all sorts of really cool things when we start to manipulate our data. So if we have an n by p matrix, x x prime is a p by n matrix. If you see a bold x with a prime, that's now a ro vector. Was an n by one vector, now it is a one by n vector. But we can do that with the matrix as well. Just walk up to it and shove it on its side. It's super simple. All we do is we make the first column of the matrix first row of the transposed matrix. The second column
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