─────┴─────┘</code></pre><p>Notice that extra variables <span>$x_3$</span>, <span>$x_4$</span>, and <span>$x_5$</span> are added to the tableau as slack variables to convert inequalities into equations. That is, canonical  form LPs are automatically converted into standard form. </p><h2 id="Standard-LPs"><a class="docs-heading-anchor" href="#Standard-LPs">Standard LPs</a><a id="Standard-LPs-1"></a><a class="docs-heading-anchor-permalink" href="#Standard-LPs" title="Permalink"></a></h