ndition <code>Ialpha</code> and <code>Ibeta</code> can be calculated using only <code>Ia</code> and <code>Ib</code>.</p>
<p>The function operates on a single sample of data and each call to the function returns the processed output. The library provides separate functions for Q31 and floating-point data types. </p>
<dl class="section user"><dt>Algorithm</dt><dd><div class="image">
<img src="clarkeFormula.gif" alt="clarkeFormula.gif"/>
</div>
 where <code>Ia</code> and <code>Ib</code> are the instantaneous s