[SciPy-User] [OT] looking for fft

Neal Becker ndbecker2@gmail....
Wed Apr 17 09:08:43 CDT 2013

I'm looking for some fft code that has:

1. commercial-friendly license
2. seperates construction (which involves costly trig functions) from repeated 
use (which should use only multiply-add)

An example of (2) is fftw, but that doesn't meet (1).

I've seen plenty of examples that have (1) but not (2) - these use fft as a 
function, which has no state.  fft should be written as a class, where in the 
constructor all the trig functions are determined.

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