pan> <span class="mdzsyn-symbol">triangle-area</span>
 <span class="mdzsyn-string">"Calculates the area of a triangle."</span>
 [<span class="mdzsyn-symbol">base</span> <span class="mdzsyn-symbol">height</span>]
 (<span class="mdzsyn-coresym">print</span> <span class="mdzsyn-string">"calculating area of a triangle..."</span>)
 (<span class="mdzsyn-coresym">*</span> <span class="mdzsyn-symbol">base</span> <span class="mdzsyn-symbol">height</span> <span class="mdzsyn-number">0.5</span>))</code></pre><p>A func