d class="paramkey"></td>
          <td></td>
          <td class="paramtype">procedure(fgsl_nlinear_fdf_func), optional&#160;</td>
          <td class="paramname"><em>func</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">procedure(fgsl_nlinear_fdf_dfunc), optional&#160;</td>
          <td class="paramname"><em>dfunc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class