 class="sd">    |     n: np.ndarray, Charge density of the system.</span>
<span class="sd">    |     seperate: bool, Set to True to return v_xc, v_x, v_c.</span>

<span class="sd">    | Returns:</span>
<span class="sd">    |     v_xc: np.ndarray, Exchange correlation potential, or evolution of exchange correlation potential.</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">n</span><span class="o">.</span><s