> <span class="nv">set</span> <span class="nv">on</span> <span class="nv">entry</span>.
        <span class="nv">On</span> <span class="k">exit</span>, <span class="nv">the</span> <span class="nv">array</span> <span class="nv">C</span> <span class="nv">is</span> <span class="nv">overwritten</span> <span class="nv">by</span> <span class="nv">the</span> <span class="nv">m</span> <span class="nv">by</span> <span class="nv">n</span> <span class="nv">matrix</span>
        <span class="ss">(</span> <span class="n