f parameter references. The final free arguments must be assignable to types
<code>real</code>, <code>real</code>, and <code>int</code>, respectively.</p>
</div>
<div id="integrate-1d-argument-types-and-origins" class="section level3">
<h3 class="unnumbered" number="">Integrate 1D argument types and origins</h3>
<p>The <code>integrate_1d</code> function requires</p>
<ul>
<li><p>its first argument to refer to a function wth signature
<code>(real, real, real[], real[], int[]) : real</code>,</p></li>
<li><p>th