5 ms·
Neat idea but this is a discrete Fourier transform (the original is continuous, with an integral), and it's only "explained" in the context of signal processing
by marmaduke 12y ago
Neat idea but this is a discrete Fourier transform (the original is continuous, with an integral), and it's only "explained" in the context of signal processing. And even then, the explanation is imperative.
I agree with another commenter that the more useful explanation is in terms of a change of basis.
- lisper 12y agoAnd it also relies on the rather fuzzily defined concept of "a bunch of points." Which bunch? Some particular bunch, or will any old bunch do?
- dnautics 12y agoyeah, I don't like the idea of 'spin your signal around a circle', and prefer 'compare your signal to a perfect wave' (multiplication).