>>cos^2+sin^2=1 ah!
so, actually the FFT doesn't HAVE to use imaginary numbers....but they are just used because "the complex-number system is two-dimensional and that signals to be analysed are presumed to be two-dimensional. They are decomposable into a sum of circular trajectories" every day a bit more of this falls into place. _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
