> <span class="Keyword">var</span> <span class="Identifier">pointer</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">cint</span> {.<span class="Identifier">cdecl</span>.}</pre></dt>
<dd>

Number of functions (elts of fvec) Number of variables (elts of x) I - Parameters O - function values O - function derivatives (optional)

</dd>
<a id="mp_iterproc"></a>
<dt><pre><a href="mpfit_wrapper.html#mp_iterproc"><span class="Identifier">mp_iterproc</span></a> <span class="Othe