> Once you understood how it's done in python, then you need to port it to fortran/c, what is the point? At that point, why would you port it to fortran/c inst

> Once you understood how it's done in python, then you need to port it to fortran/c, what is the point? At that point, why would you port it to fortran/c instead of using FFTW? The whole point of the exercise was to learn about and optimize the algorithm. If you can learn the easiest using python, why wouldn't you do your exploration in python, since going from python to your language of choice should be the easiest part of the exercise if you choose to do that.