m [-el .. el].</li>
<li>n ranges from [0 .. el'], where el' = min{el, N}</li>
<li>ind ranges from [0 .. N*(L*L-(N-1)*(2*N-1)/6)-1] for compact storage methods and from [0 .. N*L*L-1] for 0-padded storage methods.</li>
</ul>
</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">ind</td><td>1D index to access flmn array. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">el</td><td>Harmonic index </td></t