n-symbol">accum</span> <span class="mdzsyn-number">0</span>)
 (<span class="mdzsyn-coresym">each</span> <span class="mdzsyn-symbol">x</span> <span class="mdzsyn-symbol">xs</span>
  (<span class="mdzsyn-coresym">+=</span> <span class="mdzsyn-symbol">accum</span> (<span class="mdzsyn-coresym">-</span> (<span class="mdzsyn-coresym">*</span> <span class="mdzsyn-number">2</span> <span class="mdzsyn-symbol">x</span>) <span class="mdzsyn-symbol">x</span>)))
 <span class="mdzsyn-symbol">accum</span>)

(<span class=