[Noe2097]

Well, the problem is precisely that rounding as it is generally conceived, is expressed in base 10 - as we generally conceive numbers including floating point ones in base 10. Yet at the lowest level, the representation of numbers is in base 2, including floating point ones. It is imaginable, would be more correct and efficient to perform rounding (or flooring or ceiling, for that matter) in base 2, but it would be that more difficult to comprehend when dealing with non integers in code. Rounding in base 10 needs some form of conversion anyway, going for the string is one way that is, at least, readable (pun intended).