On Thu, Jul 2, 2015 at 8:51 PM, Chris Barker - NOAA Federal < chris.bar...@noaa.gov> wrote:
> Sent from my iPhone > > > > > The disadvantage I see is, that some weirder calculations would possible > > work most of the times, but not always, > > > > not sure if you can define a "tolerance" > > reasonable here unless it is exact. > > You could use a relative tolerance, but you'd still have to set that. > Better to put that decision squarely in the user's hands. > > > Though I guess you are right that > > `//` will also just round silently already. > > Yes, but if it's in the user's code, it should be obvious -- and then > the user can choose to round, or floor, or ceiling.... > round, floor, ceil don't produce integers. I'm writing library code, and I don't have control over what everyone does. round, floor, ceil, and // might hide bugs or user mistakes, if we are supposed to get something that is "like an int" but it's. 42.6 instead. Josef https://en.wikipedia.org/wiki/Phrases_from_The_Hitchhiker%27s_Guide_to_the_Galaxy#Answer_to_the_Ultimate_Question_of_Life.2C_the_Universe.2C_and_Everything_.2842.29 > > -CHB > > > > > - Sebastian > > > >> > >> for example > >> > >> > >>>>> 5.0 == 5 > >> True > >> > >> > >>>>> np.ones(10 / 2) > >> array([ 1., 1., 1., 1., 1.]) > >>>>> 10 / 2 == 5 > >> True > >> > >> > >> or the python 2 version > >> > >> > >>>>> np.ones(10. / 2) > >> array([ 1., 1., 1., 1., 1.]) > >>>>> 10. / 2 == 5 > >> True > >> > >> > >> I'm using now 10 // 2, or int(10./2 + 1) but this is unconditional > >> and doesn't raise if the numbers are not close or equal to an integer > >> (which would be a bug) > >> > >> > >> > >> > >> Josef > >> > >> > >> > >> > >> _______________________________________________ > >> NumPy-Discussion mailing list > >> NumPy-Discussion@scipy.org > >> http://mail.scipy.org/mailman/listinfo/numpy-discussion > > > > _______________________________________________ > > NumPy-Discussion mailing list > > NumPy-Discussion@scipy.org > > http://mail.scipy.org/mailman/listinfo/numpy-discussion > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion >
_______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
