Hi Michael, What is it that you're trying to do ? Paul On Tue, 27 Jul 2010, nek5000-users at lists.mcs.anl.gov wrote: > > > Hello, > > > > I am wondering if Nek has a built in subroutine for doing an FFT?  I haven't seen anything so far but thought I would inquire about it. > > > > Thanks, > > Michael >