Thought it was a good overview of why Fourier Transforms are interesting and the motivation behind them
this post was submitted on 09 Jan 2026
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So the reason pi is there is because everything gets decomposed into sinewaves?
Yeah, I think that's a good summary. I tried finding an article I read a while back that talked about it more from that angle, as in "Why does π keep showing up everywhere?", but can't track it down.
In consolation, here's the Tau Manifesto, which talks up why τ (i.e. 2π) is the better number to use, and also a post about the evil twin of π, called ϖ:
Are you a EE by chance? Not many people dig into domain transformers for fun ;)
Not an EE but I work with a lot of them and I think the enthusiasm rubs off on me