Two days ago someone published great link on Signal Processing. I can't find this link anymore. Is there any searchable HN Archive? Or did anyone save this link?
I think this may be the link you are looking for: <a href="http://jackschaedler.github.io/circles-sines-signals/" rel="nofollow">http://jackschaedler.github.io/circles-sines-signals/</a>