</code><ul>
<li>E: end token</li>
<li>S: operand token</li>
<li>B: binary operation (<code>^</code>, <code>*</code>, <code>/</code>, <code>+</code>, <code>-</code>)</li>
<li>U: unary operator (<code>+</code>, <code>-</code>)</li>
<li>F: function token (<code>sin</code>, <code>cos</code>, <code>tan</code>, <code>log10</code>, <code>log</code>, <code>abs</code>, <code>exp</code>, <code>sqrt</code>, <code>real</code>, <code>imag</code>, <code>conjg</code>, and <code>ang</code>) <b>Remarks</b> </li>
</ul>
</dd>