Not sure there should be a -nan.0 to start with. NaN is an absorbing value that shouldn't have a sign. I suspect it's because the + is a convenience to trigger the number reader, and then an appeal to symmetry and analogy to +inf.0 led to -nan.0?
On Mon, Feb 5, 2018 at 11:46 PM, Ben Greenman <benjaminlgreen...@gmail.com> wrote: > Looks like its for the same reason that (number->string -0) yields "0". > > +nan.0 is special, but -nan.0 is the same as (- +nan.0) > > http://docs.racket-lang.org/reference/numbers.html > > On Mon, Feb 5, 2018 at 6:41 PM, David Storrs <david.sto...@gmail.com> > wrote: > > I noticed that (number->string -nan.0) yields "+nan.0" instead of > "-nan.0" > > as I would have expected. It's not an issue for me, but I was wondering > why > > this is? > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to racket-users+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
