I was somewhere with no internet connection and an old laptop with Golang on it. I needed a string similarity function. Remembering vaguely hearing there was so

I was somewhere with no internet connection and an old laptop with Golang on it. I needed a string similarity function. Remembering vaguely hearing there was some kind of 'distance' algorithm to do this I hit on the idea of treating the digits a multiple dimensions and calculating the pythagorean distance. If you fancy a laugh I suggest you try this approach, the numbers get astonishly huge very quickly. I started taking the logs of numbers and even then getting overflow errors. I wished I'd seen this!