fun article about solving [fizzbuzz] with cosines by [susam pal]: https://susam.net/fizz-buzz-with-cosines.html
then, in the [hn comments](https://news.ycombinator.com/item?id=46006598), there's even more: [vidrun's fizz buzz](https://aphyr.com/posts/353-rewriting-the-technical-interview) at [aphyr].