ex="-1"></a>                                        <span class="co">//  on the domain (defined later)</span></span>
<span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a>                    <span class="dt">array</span>[] <span class="dt">real</span> theta, <span class="co">// parameters</span></span>
<span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a>                    <span class="dt">array</span>[] <span class="dt">real</span> x_r,   <span class="co">// data (real)<