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> Please don't. :( There's no good way to do this. A
> round-to-nearest-integer function should be sufficient for when people
> have a float that needs to turn into an integer (where //1's flooring
> behavior would be destructive on something like (1.0/3.0) * 3.0) but
> trying to claim that a function is smart about knowing when a float is
> actually an integer... not a good idea. MATLAB tries and gets subtle
> errors as a result.

  x == math.ifloor(x)    ?

-- Roberto