
Re: What does one call vector geometry without a coordinate system?
Posted:
Sep 3, 2013 4:41 PM


On Sunday, September 1, 2013 12:50:34 AM UTC7, Peter Percival wrote: > lite.on.beta@gmail.com wrote: > > > So are we able to define these: > > >  Euclidean plane (compass and straight edge only) > > There are points in the Euclidean plane that can't be constructed with > straight edge and a pair of compasses alone.
That is correct. The plane of points constructable by straightedge and compass is known as the "Surd Plane".

