On Sat, Nov 10, 2012 at 7:53 PM, Roy Smith <r...@panix.com> wrote: > In article <mailman.3549.1352601828.27098.python-l...@python.org>, > Ian Kelly <ian.g.ke...@gmail.com> wrote: > >> On Sat, Nov 10, 2012 at 7:13 PM, Chris Angelico <ros...@gmail.com> wrote: >> > I would not assume that. The origin is a point, just like any other. >> > With a Line class, you could deem a zero-length line to be like a >> > zero-element list, but Point(0,0) is more like the tuple (0,0) which >> > is definitely True. >> >> It's more like the number 0 than the tuple (0,0). >> >> 0 is the origin on a 1-dimensional number line. >> (0,0) is the origin on a 2-dimensional number plane. > >> In fact, it might be pointed out that Point(0, 0) is a generalization >> of 0+0j, which is equal to 0. > > > If (0,0) is the origin on a plane, then (0,) should be the origin on a > line. If you consider 0 + 0j to be the origin of a plane, then 0 is the > origin of a line. Either way is plausible, but you need to be > consistent.
Where I wrote "(0,0) is the origin" above I was not referring to a point, not a tuple, but I can see how that was confusing. -- http://mail.python.org/mailman/listinfo/python-list
