algorithms for handling floating-point, Q15, and Q31 data types. The algorithms available for each data type are described next. </dd></dl>
<dl class="section user"><dt></dt><dd>The FFT functions operate in-place. That is, the array holding the input data will also be used to hold the corresponding result. The input data is complex and contains <code>2*fftLen</code> interleaved values as shown below. <pre> {real[0], imag[0], real[1], imag[1],..} </pre> The FFT result will be contained in the same array and 