<p>Matthew wrote a good answer here about the computational steps involved in linear regression using linear algebra.</p>

<p><a href="https://stats.stackexchange.com/questions/154485/least-squares-regression-step-by-step-linear-algebra-computation">Least Squares Regression Step-By-Step Linear Algebra Computation</a></p>

<p>[Bounty placed and awarded]</p>
