> be honest, how often are you sorting things by a number and only a number? All the time. IP addresses permutation arrays (⍋⍋) Sometimes I pretend characte

> be honest, how often are you sorting things by a number and only a number? All the time. IP addresses permutation arrays (⍋⍋) Sometimes I pretend characters are numbers; short fixed-length strings (like currencies or country codes or even stock tickers) can be numbers. If I can get away with it, a radix sort is better than anything else.