Why is FFTW written in OCaml and what makes it so fast?
I don't know anything about FFTW, but the question/answer seem misleading:<p>GitHub language details of the <i>non-generated</i> sources say 75% C: <a href="https://github.com/FFTW/fftw3" rel="nofollow">https://github.com/FFTW/fftw3</a><p>FFTW author comment linked from Quora answer contradicts said answer (~2/3 C): <a href="https://groups.google.com/d/msg/fa.caml/B5kFMTl67MU/9c8swiOE0M8J" rel="nofollow">https://groups.google.com/d/msg/fa.caml/B5kFMTl67MU/9c8swiOE...</a><p>Am I missing something here? Double generation?