On Wed, Jun 12, 2019 at 8:35 AM Richard Hipp <d...@sqlite.org> wrote:
> IEEE754 floating point numbers have separate representations for +0.0 > and -0.0. As currently implemented, SQLite always display both > quantities as just "0.0". > > Question: Should SQLite be enhanced to show -0.0 as "-0.0"? Or, > would that create unnecessary confusion? > Is there any case where the display makes a difference? I cannot think of any case where it is mathematically important. Actually the "0.0" is more mathematically correct because zero is neither positive nor negative. The IBM "mainframe" zSeries processors implement three floating points formats: HFP (historic "hexadecimal Floating Point"), BFP (Binary Floating Point -- IEEE754) and DFP (Decimal Floating Point -- IEEE754-2008). I am not aware of any other architecture which does this. > > -- > D. Richard Hipp > d...@sqlite.org -- This is clearly another case of too many mad scientists, and not enough hunchbacks. Maranatha! <>< John McKown _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
