><span class="lineno">   61</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="fluid__surface__complex_8h.html#ad735239fd89496d0f8b04794743cf9ea">   63</a></span>&#160;        <span class="keyword">using</span> <a class="code" href="class_s_p_h_1_1fluid__dynamics_1_1_density_summation.html">DensitySummationFreeSurfaceComplex</a> = <a class="code" href="class_s_p_h_1_1fluid__dynamics_1_1_density_summation.html">DensitySummation&lt;DensitySummationFreeSurfaceIn