e>for-each</code> is like map, but it doesn’t build up a new list. It is just for side-effects.</li>
</ul>
<h2 id="2" class="anchor">
<a class="anchor__link link" href="#2" aria-hidden="true">#</a> Part 2
</h2>
<h3 id="2.1" class="anchor">
<a class="anchor__link link" href="#2.1" aria-hidden="true">#</a> Henderson Escher example
</h3>
<ul>
<li>We will build a language for describing self-similar, fractal-like figures.</li>
<li>This example will blur the line between procedures and data.</li>
<li>There is 