## When helping elves, you should use complex numbers to navigate in 2D > I'm hugely grateful to [4HbQ](https://old.reddit.com/user/4HbQ) for sharing their [solutions and python tricks](https://old.reddit.com/user/4HbQ/?sort=top) in r/adventofcode! They're the inspiration for this post. The first time I saw someone use complex numbers of navigate in two dimensions, I was horrified. Why would someone _want_ to use `x + y * 1j` rather than `x` and `y` to represent a point in space? It seemed li...
