On Tuesday, March 5, 2019 at 10:27:47 AM UTC-8, vdelecroix wrote: > > Just to give some elements of comparison. Following the specifications > of the standard math library in C what MPFR [3] does is that > > - "floor", "ceil", "round", "trunc" are the standard rounding > functions to some integer in their mathematical definition (ie > independently of the rounding mode) > > Yes, I think this is an important point. We should not deviate from that.
> I am fine having extra argument to floor, ceil, round, trunc in > sage to ask for bits after the decimal point. But I would keep > carefully the above specifications. > I don't think we should have an extra argument. floor, ceil, round, and trunc are maps from floats to integers. Rounding with extra digits after the (decimal?) point would require a change in return type. Changing representation length of a float is a different operation than converting it to an integer. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
