Presumably you intended to send this suggestion to Microsoft rather than
to other users who have no power to act on it. This is a peer-to-peer
newsgroup. Try
http://register.microsoft.com/mswish/suggestion.asp
instead.

Jerry

BobM wrote:

Excel's Fourier Analysis (FFT) Add-In is very useful, except that the user
must manually run it each time the input column's data changes in order to
see the new output data. Why not make this a function, so that FFT results
are updated automatically whenever the input is changed?

I'd love to see, for example, "FFT" and "IFFT" (inverse FFT) functions in a
future version of Excel.