And I guess you could expand "fun int" into something like "fun,
in't?" which probably only sounds right if you've been hanging out
some drunk Brits.
That might be it but I look at "int" functions as being more analytical types (clearly they are INTelligent) and the "float" ones as more hippy-ish fellows. I'm not sure what "dur" functions are like, maybe I don't typically have too many of those for that reason.