ulomb interaction W, in TD-DFT, and in BSE.</li><br>
<hr>
<a name=nexcitation><li>                 <span style="display:inline-block;background:#EEEEEE;width:400px">               <b>nexcitation</b>  </span>  
<br><br>
<i>Optional</i><br>
Default: 0<br><br>
Sets the number of neutral excitations to be calculated in TD-DFT or BSE.                  0 stands for all the states and triggers the full diagonalization.</li><br>
<hr>
<a name=nomega_chi_imag><li>                 <span style="display:inline-block;bac