<p>This function accepts two integers on the stack and increments or
decrements one of them such that the new pair of numbers is the next
coordinate pair in a square spiral (like the kind used to construct an
-Ulam Spiral). For more information see <a class="reference internal" href="notebooks/Square_Spiral.html"><span class="doc">Square Spiral Example Joy Code</span></a></p>
+<a class="reference external" href="https://en.wikipedia.org/wiki/Ulam_spiral">Ulam Spiral</a>). For more information see <a class="reference internal" href="notebooks/Square_Spiral.html"><span class="doc">Square Spiral Example Joy Code</span></a></p>
</section>
<section id="quick-start">
<h2>Quick Start<a class="headerlink" href="#quick-start" title="Permalink to this headline">ΒΆ</a></h2>