%
\section{FFT}

This directory contains files related to the use of Fast Fourier Transforms within {\nek}.  The two groups of files are as follows:
\begin{itemize}
\item NekFFTW.h/NekFFTW.cpp : Wrapper around FFTW library; and
%
\item NektarFFT.h/NektarFFT.cpp : Fast Fourier Transform base class in {\nek}.
\end{itemize}