ustrate 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>
</li>
</ol>
<ul>
<li>
<code>showEqn(A, b)</code> - show matrices (A, b) as linear equations, as text or in LaTeX</li>
<li>
<code>plotEqn(A, b)</code>, <code>plotEqn3d(A, b)</code> - plot matrices (A, b) as linear