 equations</li>
</ul>
<ol start="5" style="list-style-type: decimal">
<li>
<strong>Gaussian elimination</strong>: functions for illustrating Gaussian elimination for solving systems of linear equations of the form <math display="inline" xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>ùêÄ</mi><mi>ùê±</mi><mo mathvariant="bold">=</mo><mi>ùêõ</mi></mrow><annotation encoding="application/x-tex">\mathbf{A x = b}</annotation></semantics></math>. These functions provide a <code>ve