As does Javascript of course. On the other hand, IEEE754 guarantees correct rounding, so floating point operations on integral values will come out alright (add

As does Javascript of course. On the other hand, IEEE754 guarantees correct rounding, so floating point operations on integral values will come out alright (additions and multiplications will be exact within a large range, and inexact divisions will be rounded correctly, so you shouldn't be any worse than using integer operations).